Model 1100 Rev B Sanitary Pressure And Vacuum Relief Vent; Sanitary Quick-Clamp Tank Connection; 4" Line Size; 316L Stainless Steel Body And Trim Material With 3/4" Sanitary Quick-Clamp Blanket Valve Connection; Fluorocarbon Elastomer (FKM) Seal Material; Supplied With Clamps And Fluorocarbon Elastomer (FKM) Gaskets; Sanitary Cleaning Per Cashco Specification S-1576