Model 1078 Rev B Pilot Operated Tank Blanketing Valve Vacu-Gard; 1" Size; Horizontal Outlet Position, Remote Sensing; Stainless Steel Body And Trim, Carbon Steel Diaphragm Cases, Stainless Steel Fittings And Tubing, Non-Stainless Steel Pressure Gauges When Required; No Pressure Gauges; 1" PN40 Flanged End Connections; 100% Flow Plug; FFKM 1 Soft Seats And Seals; 5" - 14" WC Range Spring; Aluminum/Zinc External Pilot Filter