Model "C-BPV" Back Press Relief Reg. Clean Per Cashco Spec #S-1576; 3" Full Size; 316lSST Bar Stock Body,316SST Spring Chamber; Le Trim: 316lSST Plug & Stem,Epdm Diaphragm;Fda & Usp Class Vi Cert - (Standard Chemical & Physical) Provided; Tri-Clamp Fitting Connections; 20-75 PSIG (1.4-5.2 BARG) Range Spring