diff --git a/Rehau.Sku.Assist.csproj b/Rehau.Sku.Assist.csproj
index 880105e..2cbcf0f 100644
--- a/Rehau.Sku.Assist.csproj
+++ b/Rehau.Sku.Assist.csproj
@@ -96,6 +96,7 @@
     <Reference Include="WindowsBase" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Source\Assistant\RequestModifier.cs" />
     <Compile Include="Source\DataExport\RibbonController.cs" />
     <Compile Include="Source\Assistant\HttpClientUtil.cs" />
     <Compile Include="Source\Assistant\StoreResponse.cs" />
diff --git a/Source/Assistant/HttpClientUtil.cs b/Source/Assistant/HttpClientUtil.cs
index 6eb0b69..2d439ea 100644
--- a/Source/Assistant/HttpClientUtil.cs
+++ b/Source/Assistant/HttpClientUtil.cs
@@ -4,7 +4,6 @@ using System;
 using System.Net;
 using System.Net.Http;
 using System.Threading.Tasks;
-using System.Text;
 
 namespace Rehau.Sku.Assist
 {
@@ -35,7 +34,7 @@ namespace Rehau.Sku.Assist
             UriBuilder baseUri = new UriBuilder("https", "shop-rehau.ru");
 
             baseUri.Path = "/catalogsearch/result/index/";
-            string cleanedRequest = request._CleanRequest();
+            string cleanedRequest = request.CleanRequest();
 
             switch (AddIn.responseOrder)
             {
@@ -58,16 +57,5 @@ namespace Rehau.Sku.Assist
 
             return baseUri.Uri;
         }
-
-        private static string _CleanRequest(this string input)
-        {
-            return new StringBuilder(input)
-                .Replace("+", " plus ")
-                .Replace("РХ", "")
-                .Replace("º", " ")
-                .Replace(".", " ")
-                .Replace("Ø", " ")
-                .ToString();
-        }
     }
 }
\ No newline at end of file
diff --git a/Source/Assistant/RequestModifier.cs b/Source/Assistant/RequestModifier.cs
new file mode 100644
index 0000000..28f5775
--- /dev/null
+++ b/Source/Assistant/RequestModifier.cs
@@ -0,0 +1,60 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace Rehau.Sku.Assist
+{
+    public static class RequestModifier
+    {
+        public static string CleanRequest(this string input)
+        {
+            string replace = new StringBuilder(input)
+                .Replace("+", " plus ")
+                .Replace("РХ", "")
+                .Replace("º", " ")
+                .Replace(".", " ")
+                .Replace("Ø", " ")
+                .ToString();
+
+            return replace._tPiece();
+        }
+
+        private static string _tPiece(this string line)
+        {
+            if (!line.ToLower().Contains("тройник"))
+                return line;
+
+            string m = Regex.Match(line, @"\d{2}.\d{2}.\d{2}").Value;
+
+            int endFaceA = int.Parse($"{m[0]}{m[1]}");
+            int side = int.Parse($"{m[3]}{m[4]}");
+            int endFaceB = int.Parse($"{m[6]}{m[7]}");
+
+            int[] endFaces = new[] { endFaceA, endFaceB };
+
+            List<string> additions = new List<string>();
+
+            if (endFaces.All(x => x < side))
+                additions.Add("увеличенный боковой");
+
+            else
+            {
+                if (new[] { endFaceA, endFaceB, side }.Distinct().Count() == 1)
+                    additions.Add("равнопроходной");
+                else
+                    additions.Add("уменьшенный");
+
+                if (endFaces.Any(x => x > side))
+                    additions.Add("боковой");
+                if (endFaceA != endFaceB)
+                    additions.Add("торцевой");
+            }
+
+            string piece = $" {endFaces.Max()}-{side}-{endFaces.Min()} ";
+            string replace = string.Join(" ", additions) + piece;
+
+            return line.Replace(m, replace);
+        }
+    }
+}
\ No newline at end of file