Model ULR-1 Rev A Pressure Reducing Regulator With Unloader; Body Size 1"; Bronze Body With Bronze Loading Chamber; Monel Trim, Pa Seat, Fk Diaphragm;Fk Static Seal, Tfe Cap W/Fk Energizer Dynamic Seal, Gftfe Wiper; NPT End Connections; No Lower Spring; Internal Sensing With Standard Flow To Open Direction; With Unloader, 1/4" Size Npt, Bronze Body & Spring Chamber,;S2 Trim, SST Metal Seat And Diaphragm, Spring Range 100 - 175 PSIG; Brass Filter, Copper Tubing, Brass Fitting