Model 1078 Rev B Pilot Operated Tank Blanketing Valve Vacu-Gard; 1" Size; Vertical Outlet Position. Remote Sensing; Stainless Steel Body, Trim, Diaphragm Cases, Fittings, And Tubing; No Pressure Gauges; 2" x 1" PN40 Reducing Flange End Connections; 100% Flow Plug; Fluorocarbon Elastomer (FKM) Soft Seats And Seals; 5" - 14" WC Range Spring; Stainless Steel External Pilot Filter