Model SLR-1 Pressure Reducing Regulator W/Self-Relieving Loader; Body Size 2",; Cf3m Body, 316l SST Loading Chamber; 17-4ph SST Trim, 316l SST Cage, Pa Seat, Bc Diaphragm,;Nbr Static Seal, O-Ring Dynamic Seal; Npt End Connection; Lower Spring 2-5 PSIG Range; Internal Sensing, Standard - Flow To Open Direction; 1/4" Size Npt, Loader, Aluminum Body & Spring Chamber, Self-Relieving,;SST And Brass Internals W Buna-N Seat And Diaphragm;Spring Range 3 - 200 PSIG; Brass Filter, Copper Tubing, Brass Fitting; Opt-85: Gauge Taps, Inlet & Outlet, 1/4"Npt Female