Description 1.5 inch standard rubber gasket Fits Surge 1.5 inch ferrules Note: 1.5 means the stainless steel tubing is 1.5 inch O.D. outside diameter. See detail images to confirm size Gasket Outside Diameter is approximately 2.0 inches Used on Surge Pipeline Milking systems and transfer pumps Surge 23320 22472 7750-0222-472 4999-1000-057 GEA Farm Technologies Inc 321015A BouMatic 902015 Coburn Related items; 1000-057 Surge Black rubber Gasket for 1.5 inch (This item) 1000-059 Surge White Teflon Gasket for 1.5 inch 1000-049 Surge Black Check Valve for 1.5 Milk Pump 1000-541 Surge Clamp for 1.5 inch 1000-931 Surge x Clamp adapter 1.5 inch 1000-643 Roll on ferrule for Surge fittings for 1.5 inch 7750-0031-482R Rebuilt Secondary Drain - Surge Ferrules 7750-0105-634 New Secondary Drain - Surge Ferrules 7750-0031-168 New Secondary Drain - Clamp Ferrules *** Please confirm size and style before ordering - note this item is Not Returnable updated 7/26