Model 1088 Rev B Spring Operated Tank Blanketing Valve Vacu-Gard; Horizontal Outlet Position,; Internal Sensing; Stainless Steel Body, Trim, And Diaphragm Cases; Supply Pressure Gauge 0 - 160 PSIG, Tank Pressure Gauge 0 - 5" wc; 1/2" FNPT End Connections; 100% Flow Plug; Fluorocarbon Elastomer (FKM) Soft Seats And Seals; 1.5" - 5.0" wc Range Spring; No External Filter