Model "C-BPV" Back Press Relief Reg. Clean Per Cashco Spec #S-1576; 1-1/2" Reduced Size; 316lSST Bar Stock 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; 10-30 PSIG (.69-2.07 BARG) Range Spring; Opt-4: Tee Handle