Model 1088 Rev B Spring Operated Tank Blanketing Valve Vacu-Gard; Vertical Outlet Position, Remote Sensing; Stainless Steel Body, Trim, And Diaphragm Cases; No Pressure Gauges; 3/4" x 1/2" ASME 150 Threaded Reducing Flange End Connections; 100% Flow Plug; FFKM 1 Soft Seats And Seals; 1.5 - 3 PSIG Range Spring; No External Filter