Our practical Replacement Back Pressure Regulator (BPR) Cartridge operates as an easy to use, replaceable component for our BPR systems. Our cartridge can easily be used with any of our standard BRP Holders and creates a back pressure of 250 psi (17 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 white cap.