Description: The Back pressure Regulator (BPR) is the same dimensionally as the Pressure Regulator (PR) except that the inlet and outlet ports on the BPR are reversed from the PR.
Material: Brass body and head with stainless steel adjustment shaft, springs, washers and valve seat.
Aluminum (33 grams) and 303 stainless steel are available upon request.
Seals: Four Buna-N O-rings. Optional materials: EPDM, Viton® and Neoprene.
BPR - Back Pressure Regulator 
