Watts ET RA 500 Part of the ET RA Series ADA Pad and a 12¾″ × 12¾″ and a 12¾″ × 12¾″ square adjustable top fitted with a heel proof ductile iron grate 00 Minimum Temperature Fahrenheit 0 Operating Torque Does Not Apply To Product Outlet Connection Size 3 4 IN Outlet Connection Type Female Threaded Outlet Thread Type Does Not Apply To Product Part Number 88009019 Port Type Full Seat Material Virgin PTFE Series LFFBV 3 PRxFIP Stem Packing Material Virgin PTFE Stem Shaft Material Brass Stem Type Bottom Loaded Blowout Proof Thrust Washer Material Virgin PTFE Valve Style 2 piece WOG Rating 250 PSI Specification Sheet LFFBV 3 PRxFIP The excess water is contained in the heavy duty butyl bladder preventing tank corrosion and waterlogging problems Features ASME Section VIII code construction