Model C-BPV Rev D Sanitary Back Pressure Regulator, Cleaned For Sanitary Service Per Cashco Specification S-1576; 1" Line Size, Full Port; Sales Kit B; Stainless Steel Body And Spring Chamber; GG Trim: Stainless Steel Plug And Stem, Gylon Diaphragm, OPT-80: Tri-Clamp 2-Piece Design With Stainless Steel Bolts