Image Dixon Cam & Groove Notched NOS Type C Coupler x NOS Shank Markets Agriculture & Forestry, Chemical Processing, Construction, Energy / Oil & Gas, Mining, Steel Processing, Transportation Product Options Part Number Size Seal Material 150CNOSSS 1-1/2" Nitrile Rubber 316 Stainless Steel 200CNOSSS 2" Nitrile Rubber 316 Stainless Steel 300CNOSSS 3" Nitrile Rubber 316 Stainless Steel