Our practical Replacement Back Pressure Regulator (BPR) Cartridge (P-763) operates as an easy to use, replaceable component for our BPR systems. Our Cartridge can conveniently be used with any of our standard BRP Holders and creates a back pressure of 100 psi (7 bar). It is constructed from PEEK, Tefzel (EFTE), PCTFE and has a gold plated stainless steel spring delivering reliable usage. It comes with a tan body and red cap.