20 psig-900 psig; 1/4 npt fittings; max inlet pressure 5000 psig; automatic reset; -40 degrees f to plus 200 degrees f; body and bonnet are aluminum; diaphragm and seals are buna n and dacron; trim is stainless steel; 5-3/16 in. Long; bottom to center of opening w/npt fitting 1-9/16 in.; 1.750 in. Square bottom shape; 3/4 in. Hex top
