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" Class 150 Threaded Flange End Connections; 10% Flow Plug; FFKM 1 Soft Seats And Seals; 0.5" - 5.0" WC Range Spring (0.71" - 5.0" WC For 1" Highflow); Aluminum/Zinc External Pilot Filter; Per SPQ 206: Assemble With Silicone Free Lubricants Only (Christo-Lube MCG-111); Statement Of Silicone Free Lubricants Provided