Stainless Steel Sanitary Sight-Glass ASTM A-270 - 2Ã?? Clamp End
USA Lab High Pressure Triclamp Sight Glass 1.5", 2", 3" - 350PSI - USA Lab
Amazon.com: Beduan in-Line Sight Glass with Tri Clamp End, Sanitary Flow Sight Glass Stainless Steel 2 Inch Tri Clamp Type (Flow Pipe OD 51mm) : Industrial & Scientific