diff --git a/src/Models/SkuExtensions.cs b/src/Models/SkuExtensions.cs
deleted file mode 100644
index 160dc16..0000000
--- a/src/Models/SkuExtensions.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-using System.Text.RegularExpressions;
-
-namespace RhSolutions.Models
-{
-    static class SkuExtensions
-    {
-        public static bool IsRehauSku(this string line)
-        {
-            return Regex.IsMatch(line, @"^[1]\d{6}[1]\d{3}$");
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/Models/SourcePriceList.cs b/src/Models/SourcePriceList.cs
index d210c10..ed860b4 100644
--- a/src/Models/SourcePriceList.cs
+++ b/src/Models/SourcePriceList.cs
@@ -87,7 +87,7 @@ namespace RhSolutions.Models
                     if (group == null || name == null || sku == null)
                         continue;
 
-                    if (!sku.ToString().IsRehauSku())
+                    if (!Sku.TryParse(sku.ToString(), out _))
                         continue;
 
                     Product p = new Product
diff --git a/src/RhSolutions.csproj b/src/RhSolutions.csproj
index d88943e..c46d489 100644
--- a/src/RhSolutions.csproj
+++ b/src/RhSolutions.csproj
@@ -83,7 +83,6 @@
     <Compile Include="Models\StatusbarBase.cs" />
     <Compile Include="Models\Dialog.cs" />
     <Compile Include="Services\RegistryUtil.cs" />
-    <Compile Include="Models\SkuExtensions.cs" />
     <Compile Include="Models\ProgressBar.cs" />
     <Compile Include="Models\ResultBar.cs" />
     <Compile Include="Controllers\CombineTool.cs" />