Model 1078 Rev B Pilot Operated Tank Blanketing Valve Vacu-Gard; 1" Size; Horizontal Outlet Position, Remote Sensing; Stainless Steel Body, Trim, Diaphragm Cases, Fittings, And Tubing; No Pressure Gauges; 1" Class 150 Threaded Flange End Connections; 75% Flow Plug; Fluorocarbon Elastomer (FKM) Soft Seats And Seals; 0.5" - 5.0" WC Range Spring (0.71" - 5.0" WC For 1" Highflow); Special Aluminum External Pilot Filter (UCC/DOW)