diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Adapter.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Adapter.cs
index 4074e97..2956fd1 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Adapter.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Adapter.cs
@@ -4,18 +4,20 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public abstract class Adapter : DrinkingWaterHeatingFitting
 {
-	protected override string? BuildRhSolutionsName(string query)
-	{
-		Match diameter = _diameter.Match(query);
+	public override bool TryQueryModify(string input, out string output)
+	{		
+		output = string.Empty;
+		Match diameter = _diameter.Match(input);
 		if (!diameter.Success)
 		{
-			return null;
+			return false;
 		}
-		Match thread = _thread.Match(query);
+		Match thread = _thread.Match(input);
 		if (!thread.Success)
 		{
-			return null;
+			return false;
 		}
-		return $"{_title} {diameter.Groups["Diameter"]} {thread.Groups["Thread"]}";
+		output = $"{_title} {diameter.Groups["Diameter"]} {thread.Groups["Thread"]}";
+		return true;
 	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerHeating.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerHeating.cs
index 6785e7e..b0269a6 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerHeating.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerHeating.cs
@@ -2,21 +2,23 @@
 
 public class BendFormerHeating : DrinkingWaterHeatingFitting
 {
-    protected override string _title => "Фиксатор поворота";
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        var diameterMatch = _diameter.Match(query);
-        if (!diameterMatch.Success)
-        {
-            return null;
-        }
-        string diameter = diameterMatch.Groups["Diameter"].Value;
-        if (diameter == "16")
-        {
-            diameter += "/17";
-        }
-        var angleMatch = _angle.Match(query);
-        string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
-        return $"{_title} {diameter}/{angle}°";
-    }
+	protected override string _title => "Фиксатор поворота";
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
+		if (!diameterMatch.Success)
+		{
+			return false;
+		}
+		string diameter = diameterMatch.Groups["Diameter"].Value;
+		if (diameter == "16")
+		{
+			diameter += "/17";
+		}
+		var angleMatch = _angle.Match(input);
+		string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
+		output = $"{_title} {diameter}/{angle}°";
+		return true;
+	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerSanitary.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerSanitary.cs
index 0ba0ca6..0290ef8 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerSanitary.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerSanitary.cs
@@ -2,17 +2,20 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class BendFormerSanitary : DrinkingWaterHeatingFitting
 {
-    protected override string _title => "Фиксатор поворота с кольцами";
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        var diameterMatch = _diameter.Match(query);
-        if (!diameterMatch.Success)
-        {
-            return null;
-        }
-        string diameter = diameterMatch.Groups["Diameter"].Value;
-        var angleMatch = _angle.Match(query);
-        string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
-        return $"{_title} {angle}° {diameter}";
-    }
+	protected override string _title => "Фиксатор поворота с кольцами";
+
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
+		if (!diameterMatch.Success)
+		{
+			return false;
+		}
+		string diameter = diameterMatch.Groups["Diameter"].Value;
+		var angleMatch = _angle.Match(input);
+		string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
+		output = $"{_title} {angle}° {diameter}";
+		return true;
+	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ConnectionBend.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ConnectionBend.cs
index e70fb00..0ff72d7 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ConnectionBend.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ConnectionBend.cs
@@ -9,16 +9,18 @@ public class ConnectionBend : DrinkingWaterHeatingFitting
 		new(@"([\b\D]|^)?(?<Diameter>16|20|25)(\D+|.*15.*)(?<Length>\b\d{3,4})([\b\D]|$)");
 	protected override string _title => "Трубка Г-образная";
 
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var match = _pattern.Match(query);
+		output = string.Empty;
+		var match = _pattern.Match(input);
 		if (!match.Success)
 		{
-			return null;
+			return false;
 		}
 		string diameter =  match.Groups["Diameter"].Value;
 		int length = int.Parse(match.Groups["Length"].Value);
 		int nearest = lengths.OrderBy(x => Math.Abs(x - length)).First();
-		return $"{_title} {diameter}/{nearest}";
+		output = $"{_title} {diameter}/{nearest}";
+		return true;
 	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Coupling.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Coupling.cs
index a418621..8ae446c 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Coupling.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Coupling.cs
@@ -3,24 +3,27 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 public class Coupling : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Муфта соединительная";
-	protected override string? BuildRhSolutionsName(string query)
+
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diametersMatches = _diameter.Matches(query);			
+		output = string.Empty;
+		var diametersMatches = _diameter.Matches(input);			
 		if (diametersMatches.Count == 0)		
 		{
-			return null;
+			return false;
 		}
 		var diameters = diametersMatches.Select(x => x.Groups["Diameter"].Value)
 			.Take(2)
 			.OrderByDescending(x => int.Parse(x))
 			.ToArray();			
 		if (diameters.Length == 1 || diameters[0] == diameters[1])
-			{
-				return $"{_title} равнопроходная {diameters[0]}";
-			}
-			else
-			{
-				return $"{_title} переходная {diameters[0]}-{diameters[1]}";
-			}
+		{
+			output = $"{_title} равнопроходная {diameters[0]}";
+		}
+		else
+		{
+			output = $"{_title} переходная {diameters[0]}-{diameters[1]}";
+		}
+		return true;
 	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs
index afd03de..0d635b1 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs
@@ -13,19 +13,18 @@ public abstract class DrinkingWaterHeatingFitting : IProductQueryModifier
 
 	protected virtual string _title { get; } = string.Empty;
 
-	public bool TryQueryModify(string input, out string output)
+	public virtual bool TryQueryModify(string input, out string output)
 	{
-		output = BuildRhSolutionsName(input) ?? string.Empty;
-		return !string.IsNullOrEmpty(output);
-	}
-
-	protected virtual string? BuildRhSolutionsName(string query)
-	{
-		var match = _diameter.Match(query);
+		var match = _diameter.Match(input);
 		if (match.Success)
 		{
-			return $"{_title} {match.Groups["Diameter"]}";
+			output = $"{_title} {match.Groups["Diameter"]}";
+			return true;
+		}
+		else
+		{
+			output = string.Empty;
+			return false;
 		}
-		return null;
 	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ElbowModifier.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ElbowModifier.cs
index cccf77b..a85b0d8 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ElbowModifier.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ElbowModifier.cs
@@ -2,17 +2,20 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class ElbowModifier : DrinkingWaterHeatingFitting
 {
-    protected override string _title { get; } = "Угольник RAUTITAN -PLATINUM";
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        var diameterMatch = _diameter.Match(query);
-        if (!diameterMatch.Success)
-        {
-            return null;
-        }
-        string diameter = diameterMatch.Groups["Diameter"].Value;
-        var angleMatch = _angle.Match(query);
-        string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
-        return $"{_title} {angle} {diameter}";
-    }
+	protected override string _title { get; } = "Угольник RAUTITAN -PLATINUM";
+	
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
+		if (!diameterMatch.Success)
+		{
+			return false;
+		}
+		string diameter = diameterMatch.Groups["Diameter"].Value;
+		var angleMatch = _angle.Match(input);
+		string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
+		output = $"{_title} {angle} {diameter}";
+		return true;
+	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Eurocone.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Eurocone.cs
index a658c17..00047f3 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Eurocone.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Eurocone.cs
@@ -4,18 +4,19 @@ public abstract class Eurocone : DrinkingWaterHeatingFitting
 {
 	protected virtual Dictionary<string, string> _titles { get; } = new();
 
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
 		if (diameterMatch.Success)
 		{
 			string diameter = diameterMatch.Groups["Diameter"].Value;
 			if (_titles.TryGetValue(diameter, out string? title))
 			{
-				return title;
+				output = title;
+				return true;
 			}
-			else return null;
 		}
-		return null;
+		return false;
 	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeAdapter.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeAdapter.cs
index 120ba32..7f779f4 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeAdapter.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeAdapter.cs
@@ -3,14 +3,17 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 public class EuroconeAdapter : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Переходник на евроконус";
-	protected override string? BuildRhSolutionsName(string query)
+
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
 		if (diameterMatch.Success)
 		{
 			string diameter = diameterMatch.Groups["Diameter"].Value;
-			return $"{_title} {diameter}-G 3/4";
+			output = $"{_title} {diameter}-G 3/4";
+			return true;
 		}
-		return null;
+		return false;
 	}
 }
\ No newline at end of file
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeConnectionBend.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeConnectionBend.cs
index 7f7cee3..554c346 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeConnectionBend.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeConnectionBend.cs
@@ -2,8 +2,9 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class EuroconeConnectionBend : DrinkingWaterHeatingFitting
 {
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        return "Резьбозажимное соединение для металлической трубки G 3/4 -15";
-    }
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = "Резьбозажимное соединение для металлической трубки G 3/4 -15";
+		return true;
+	}
 }
\ No newline at end of file
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Nippel.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Nippel.cs
index 0796946..6c61184 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Nippel.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Nippel.cs
@@ -2,8 +2,9 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class Nippel : DrinkingWaterHeatingFitting
 {
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        return "К-т двух резьбозажим. нипелей с нар.резьбой 1/2х3/4";
-    }
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = "К-т двух резьбозажим. нипелей с нар.резьбой 1/2х3/4";
+		return true;
+	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/SupportingClip.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/SupportingClip.cs
index 1bccbad..54eade9 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/SupportingClip.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/SupportingClip.cs
@@ -4,9 +4,10 @@ public class SupportingClip : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Фиксирующий желоб для ПЭ-трубы";
 
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;		
+		var diameterMatch = _diameter.Match(input);
 		if (diameterMatch.Success)
 		{
 			string diameter = diameterMatch.Groups["Diameter"].Value;
@@ -14,8 +15,9 @@ public class SupportingClip : DrinkingWaterHeatingFitting
 			{
 				diameter += "/17";
 			}
-			return $"{_title} {diameter}";
+			output = $"{_title} {diameter}";
+			return true;
 		}
-		return null;
+		return false;
 	}
 }
\ No newline at end of file
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/TPiece.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/TPiece.cs
index 292da22..6ecd575 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/TPiece.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/TPiece.cs
@@ -2,24 +2,26 @@
 
 public class TPiece : DrinkingWaterHeatingFitting
 {
-    protected override string _title => "Тройник RAUTITAN -PLATINUM";
+	protected override string _title => "Тройник RAUTITAN -PLATINUM";
 
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        var diameters = _diameter.Matches(query)
-            .Select(match => match.Groups["Diameter"].Value)
-            .ToArray();
-        if (diameters.Length == 1)
-        {
-            return $"{_title} {diameters[0]}-{diameters[0]}-{diameters[0]}";
-        }
-        else if (diameters.Length >= 3)
-        {
-            return $"{_title} {diameters[0]}-{diameters[1]}-{diameters[2]}";
-        }
-        else
-        {
-            return null;
-        }
-    }
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameters = _diameter.Matches(input)
+			.Select(match => match.Groups["Diameter"].Value)
+			.ToArray();
+		if (diameters.Length == 1)
+		{
+			output = $"{_title} {diameters[0]}-{diameters[0]}-{diameters[0]}";
+		}
+		else if (diameters.Length >= 3)
+		{
+			output = $"{_title} {diameters[0]}-{diameters[1]}-{diameters[2]}";
+		}
+		else
+		{
+			return false;
+		}
+		return true;
+	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowDoubleWallInternal.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowDoubleWallInternal.cs
index 69799ed..d6772bf 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowDoubleWallInternal.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowDoubleWallInternal.cs
@@ -7,23 +7,25 @@ public class ThreadElbowDoubleWallInternal : DrinkingWaterHeatingFitting
 	protected override string _title => "Проточный настенный угольник";
 	private Regex _type = new(@"([\b\Wу])(?<Type>длин)([\b\w\.\s])");
 
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatches = _diameter.Matches(query);
+		output = string.Empty;
+		var diameterMatches = _diameter.Matches(input);
 		if (diameterMatches.Count == 0)
 		{
-			return null;
+			return false;
 		}
-		var threadMatch = _thread.Match(query);
+		var threadMatch = _thread.Match(input);
 		if (!threadMatch.Success)
 		{
-			return null;
+			return false;
 		}
-		var typeMatch = _type.Match(query);
+		var typeMatch = _type.Match(input);
 		string[] diameters = diameterMatches.Select(x => x.Groups["Diameter"].Value).ToArray();
 		string thread = threadMatch.Groups["Thread"].Value;
 		string type = typeMatch.Success ? "длинный" : "короткий";
 		
-		return $"{_title} {diameters[0]}/{(diameters.Length > 1 ? diameters[1] : diameters[0])}-Rp {thread} {type}";
+		output = $"{_title} {diameters[0]}/{(diameters.Length > 1 ? diameters[1] : diameters[0])}-Rp {thread} {type}";
+		return true;
 	}
 }
\ No newline at end of file
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallExternal.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallExternal.cs
index 47c4b07..c8edfab 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallExternal.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallExternal.cs
@@ -3,20 +3,23 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 public class ThreadElbowWallExternal : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Угольник настенный с наружной резьбой";
-	protected override string? BuildRhSolutionsName(string query)
+
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
 		if (!diameterMatch.Success)
 		{
-			return null;
+			return false;
 		}
-		var threadMatch = _thread.Match(query);
+		var threadMatch = _thread.Match(input);
 		if (!threadMatch.Success)
 		{
-			return null;
+			return false;
 		}
 		string diameter = diameterMatch.Groups["Diameter"].Value;
 		string thread = threadMatch.Groups["Thread"].Value;
-		return $"{_title} {diameter}-R {thread}";
+		output = $"{_title} {diameter}-R {thread}";
+		return true;
 	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallInternal.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallInternal.cs
index ee20921..6450796 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallInternal.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallInternal.cs
@@ -6,21 +6,24 @@ public class ThreadElbowWallInternal : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Угольник настенный внутр. резьба";
 	private Regex _type = new(@"([\b\Wу])(?<Type>длин)([\b\w\.\s])");
-	protected override string? BuildRhSolutionsName(string query)
-	{		
-		var diameterMatch = _diameter.Match(query);
+
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
 		if (!diameterMatch.Success)
 		{
-			return null;
+			return false;
 		}
-		var threadMatch = _thread.Match(query);
+		var threadMatch = _thread.Match(input);
 		if (!threadMatch.Success)
 		{
-			return null;
+			return false;
 		}
-		var typeMatch = _type.Match(query);
+		var typeMatch = _type.Match(input);
 		string diameter = diameterMatch.Groups["Diameter"].Value;
 		string thread = threadMatch.Groups["Thread"].Value;
-		return $"{_title} {(typeMatch.Success ? "длинный " : string.Empty)}{diameter}-Rp {thread}";
+		output = $"{_title} {(typeMatch.Success ? "длинный " : string.Empty)}{diameter}-Rp {thread}";
+		return true;
 	}
 }
\ No newline at end of file
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceExternal.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceExternal.cs
index af5df72..ad8d0b4 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceExternal.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceExternal.cs
@@ -4,23 +4,26 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class ThreadTPieceExternal : DrinkingWaterHeatingFitting
 {
-    protected override string _title => "Тройник RAUTITAN с наружной резьбой";
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        MatchCollection diametersMatches = _diameter.Matches(query);
-        if (diametersMatches.Count == 0)
-        {
-            return null;
-        }
-        string thread = _thread.Match(query).Groups["Thread"].Value;
-        int[] diameters = diametersMatches.Select(match => int.Parse(match.Groups["Diameter"].Value)).ToArray();
-        if (diameters.Length == 1)
-        {
-            return $"{_title} {diameters[0]}-{diameters[0]}-R {thread}";
-        }
-        else
-        {
-            return $"{_title} {diameters[0]}-{diameters[1]}-R {thread}";
-        }
-    }
+	protected override string _title => "Тройник RAUTITAN с наружной резьбой";
+
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		MatchCollection diametersMatches = _diameter.Matches(input);
+		if (diametersMatches.Count == 0)
+		{
+			return false;
+		}
+		string thread = _thread.Match(input).Groups["Thread"].Value;
+		int[] diameters = diametersMatches.Select(match => int.Parse(match.Groups["Diameter"].Value)).ToArray();
+		if (diameters.Length == 1)
+		{
+			output = $"{_title} {diameters[0]}-{diameters[0]}-R {thread}";
+		}
+		else
+		{
+			output = $"{_title} {diameters[0]}-{diameters[1]}-R {thread}";
+		}
+		return true;
+	}
 }
\ No newline at end of file
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceInternal.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceInternal.cs
index 08afe62..9cfd1c6 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceInternal.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceInternal.cs
@@ -4,36 +4,38 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class ThreadTPieceInternal : DrinkingWaterHeatingFitting
 {
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        MatchCollection diametersMatches = _diameter.Matches(query);
-        if (diametersMatches.Count == 0)
-        {
-            return null;
-        }
-        string thread = _thread.Match(query).Groups["Thread"].Value;
-        int[] diameters = diametersMatches.Select(match => int.Parse(match.Groups["Diameter"].Value)).ToArray();
-        if (diameters.Length == 1)
-        {
-            if (diameters[0] < 25)
-            {
-                return $"Тройник RAUTITAN настенный с внутренней резьбой {diameters[0]}-Rp{thread}-{diameters[0]}";
-            }
-            else
-            {
-                return $"Тройник RAUTITAN с внутр. резьбой на боков. проходе {diameters[0]}-Rp {thread}-{diameters[0]}";
-            }
-        }
-        else
-        {
-            if (diameters[0] < 25)
-            {
-                return $"Тройник RAUTITAN настенный с внутренней резьбой {diameters[0]}-Rp{thread}-{diameters[1]}";
-            }
-            else
-            {
-                return $"Тройник RAUTITAN с внутр. резьбой на боков. проходе {diameters[0]}-Rp {thread}-{diameters[1]}";
-            }
-        }
-    }
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		MatchCollection diametersMatches = _diameter.Matches(input);
+		if (diametersMatches.Count == 0)
+		{
+			return false;
+		}
+		string thread = _thread.Match(input).Groups["Thread"].Value;
+		int[] diameters = diametersMatches.Select(match => int.Parse(match.Groups["Diameter"].Value)).ToArray();
+		if (diameters.Length == 1)
+		{
+			if (diameters[0] < 25)
+			{
+				output = $"Тройник RAUTITAN настенный с внутренней резьбой {diameters[0]}-Rp{thread}-{diameters[0]}";
+			}
+			else
+			{
+				output = $"Тройник RAUTITAN с внутр. резьбой на боков. проходе {diameters[0]}-Rp {thread}-{diameters[0]}";
+			}
+		}
+		else
+		{
+			if (diameters[0] < 25)
+			{
+				output = $"Тройник RAUTITAN настенный с внутренней резьбой {diameters[0]}-Rp{thread}-{diameters[1]}";
+			}
+			else
+			{
+				output = $"Тройник RAUTITAN с внутр. резьбой на боков. проходе {diameters[0]}-Rp {thread}-{diameters[1]}";
+			}
+		}
+		return true;
+	}
 }
diff --git a/RhSolutions.QueryModifiers/DrinkingWaterHeatingPipes/DrinkingWaterHeatingPipe.cs b/RhSolutions.QueryModifiers/DrinkingWaterHeatingPipes/DrinkingWaterHeatingPipe.cs
index 5c1bfd9..1420d03 100644
--- a/RhSolutions.QueryModifiers/DrinkingWaterHeatingPipes/DrinkingWaterHeatingPipe.cs
+++ b/RhSolutions.QueryModifiers/DrinkingWaterHeatingPipes/DrinkingWaterHeatingPipe.cs
@@ -1,62 +1,56 @@
 using System.Text.RegularExpressions;
-using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Http.Extensions;
 
 namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingPipes;
 
 public class DrinkingWaterHeatingPipe : IProductQueryModifier
 {
-    protected static readonly Regex _diameter =
-        new(@"([\b\D]|^)?(?<Diameter>16|20|25|32|40|50|63)([\b\D]|$)");
-    protected static readonly Regex _type = 
-        new(@"([\b\W])(?<Type>бухт|отр|штанг)([\b\w\.\s])");
-    protected virtual string _title { get; } = string.Empty;
+	protected static readonly Regex _diameter =
+		new(@"([\b\D]|^)?(?<Diameter>16|20|25|32|40|50|63)([\b\D]|$)");
+	protected static readonly Regex _type = 
+		new(@"([\b\W])(?<Type>бухт|отр|штанг)([\b\w\.\s])");
+	protected virtual string _title { get; } = string.Empty;
 
-    protected virtual Dictionary<int, string> _diameterNames { get; } = new()
-    {
-        [16] = "16x2,2",
-        [20] = "20x2,8",
-        [25] = "25x3,5",
-        [32] = "32x4,4",
-        [40] = "40x5,5",
-        [50] = "50x6,9",
-        [63] = "63x8,6"
-    };
+	protected virtual Dictionary<int, string> _diameterNames { get; } = new()
+	{
+		[16] = "16x2,2",
+		[20] = "20x2,8",
+		[25] = "25x3,5",
+		[32] = "32x4,4",
+		[40] = "40x5,5",
+		[50] = "50x6,9",
+		[63] = "63x8,6"
+	};
 
-    protected virtual Dictionary<string, string> _makeUp { get; } = new()
-    {
-        ["бухт"] = "бухта",
-        ["штанг"] = "прям.отрезки",
-        ["отр"] = "прям.отрезки"
-    };
+	protected virtual Dictionary<string, string> _makeUp { get; } = new()
+	{
+		["бухт"] = "бухта",
+		["штанг"] = "прям.отрезки",
+		["отр"] = "прям.отрезки"
+	};
 
 	public bool TryQueryModify(string input, out string output)
 	{
-		output = BuildRhSolutionsName(input) ?? string.Empty;
-		return !string.IsNullOrEmpty(output);
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
+		if (!diameterMatch.Success)
+		{
+			return false;
+		}
+		var diameter = int.Parse(diameterMatch.Groups["Diameter"].Value);
+		var typeMatch = _type.Match(input);
+		if (typeMatch.Success)
+		{
+			var type = typeMatch.Groups["Type"].Value;
+			output = $"Труба {_title} {_diameterNames[diameter]} {_makeUp[type]}";
+		}
+		else if (diameter < 32)
+		{
+			output = $"Труба {_title} {_diameterNames[diameter]} {_makeUp["бухт"]}";
+		}
+		else
+		{
+			output = $"Труба {_title} {_diameterNames[diameter]} {_makeUp["отр"]}";
+		}
+		return true;
 	}
-
-    protected virtual string? BuildRhSolutionsName(string query)
-    {
-        var diameterMatch = _diameter.Match(query);
-        if (!diameterMatch.Success)
-        {
-            return null;
-        }
-        var diameter = int.Parse(diameterMatch.Groups["Diameter"].Value);
-        var typeMatch = _type.Match(query);
-        if (typeMatch.Success)
-        {
-            var type = typeMatch.Groups["Type"].Value;
-            return $"Труба {_title} {_diameterNames[diameter]} {_makeUp[type]}";
-        }
-        else if (diameter < 32)
-        {
-            return $"Труба {_title} {_diameterNames[diameter]} {_makeUp["бухт"]}";
-        }
-        else
-        {
-            return $"Труба {_title} {_diameterNames[diameter]} {_makeUp["отр"]}";
-        }
-    }
 }
diff --git a/RhSolutions.QueryModifiers/IProductQueryModifier.cs b/RhSolutions.QueryModifiers/IProductQueryModifier.cs
index c1a7b1d..bf790ef 100644
--- a/RhSolutions.QueryModifiers/IProductQueryModifier.cs
+++ b/RhSolutions.QueryModifiers/IProductQueryModifier.cs
@@ -1,6 +1,4 @@
-using Microsoft.AspNetCore.Http;
-
-namespace RhSolutions.QueryModifiers;
+namespace RhSolutions.QueryModifiers;
 
 public interface IProductQueryModifier
 {