Model 1088 Rev B Spring Operated Tank Blanketing Valve Vacu-Gard; Vertical Outlet Position, Integral Dip-Tube Sensing; Stainless Steel Body, Trim, And Lower Diaphragm Case With Carbon Steel Upper Diaphragm Case, With All Stainless Steel Wetted Parts; Supply Pressure Gauge 0 - 100 PSIG, Tank Pressure Gauge 0 - 5" wc; 1" x 1/2" ASME 150 Threaded Reducing Flange End Connections; 40% Flow Plug; Fluorocarbon Elastomer (FKM) Soft Seats And Seals; 1.5" - 5.0" wc Range Spring; Stainless Steel External Filter With Check Valve