Improve fittings regex

1 files changed, 3 insertions, 3 deletions

diff --git a/RhSolutions.Parsers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs b/RhSolutions.Parsers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs
index 218e9e0..5658766 100644
--- a/RhSolutions.Parsers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs
+++ b/RhSolutions.Parsers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs
@@ -5,11 +5,11 @@ namespace RhSolutions.Parsers.Fittings;
 public abstract class DrinkingWaterHeatingFitting : IProductParser
 {
 	protected static readonly Regex _diameter =
-		new(@"([\b\D]|^)?(?<Diameter>16|20|25|32|40|50|63)([\b\D]|$)");
+		new(@"(?<!^)[\b\D]?(?<Diameter>16|20|25|32|40|50|63)[\b\D]?");
 	protected static readonly Regex _angle =
-		new(@"([\b\D])(?<Angle>45|90)([\b\D]|$)");
+		new(@"(?<!^)([\b\D])(?<Angle>45|90)([\b\D]|$)");
 	protected static readonly Regex _thread =
-		new(@"([\b\D])(?<Thread>1\s+1/4|1\s+1/2|1/2|3/4|2|1)([\b\D]|$)");
+		new(@"(?<!^)([\b\D])(?<Thread>1\s+1/4|1\s+1/2|1/2|3/4|2|1)([\b\D]|$)");
 
 	protected virtual string _title { get; } = string.Empty;