Model "C-BPV" Back Press Relief Reg. Clean Per Cashco Spec #S-1576; 1" Full Size; 316lSST Investment Cast Body,316SST Spring Chamber; Gg Trim: 316lSST Plug & Stem, Gylon Diaphragm,;Includes Option -80 Tri-Clamp 2 Piece Bolted,;Fda & Usp Class Vi Cert - (Standard Chemical & Physical) Provided; Tri-Clamp Fitting Connections; 60-125 PSIG (4.1-8.6 BARG) Range Spring, Includes Tee Handle (Opt-4);And Tri-Clamp 2 Piece Design With SST Bolts (Opt-80)