Model SLR-2 Rev A Pressure Reducing Regulator With Non-Relieving Loader; 2" Line Size; Bronze Body, Ductile Iron Loading Chamber; PW 17-4PH Stainless Steel Trim, 316L Stainless Steel Cage, BUNA-N Seat, BUNA-N Diaphragm, BUNA-N Static Seal, Stainless Steel/PTFE U-Cup Dynamic Seal; NPT End Connections; Lower Spring 2-5 PSIG Range; Internal Sensing; Loader Configuration: 1/4" NPT, Aluminum Body And Spring Chamber, Non-Relieving, Brass And Stainless Steel Trim, BUNA-N Seat And Diaphragm, 1 - 60 psig Spring Range; Brass Filter, Copper Tubing, Brass Fittings