Home » Valves & Fittings » VentsModel 48 - Blow Off VentsFor all AST storage applications. Allows venting to relieve the excessive internal pressure build-up. The emergency vents will open at approximately 1 PSI. The unique mushroom design specifically prevents water and contaminants from entering the AST.Application -For all AST storage applications. Allows venting to relievem the excessive internal pressure build-up. The emergency vents will open at approximately 1 PSI.Features -✔ O-ring seal prevents vapor leaks✔ Mounts onto the tank✔ Female threads✔ Non-corrosive polymeric coating✔ Meets state and federal regulations✔ Compatable with E-85Construction -• Rugged epoxy coated cast iron bodySales SheetPrice: $0.00 48 Please Select...-40 -60 -80 M-40 M-60 Tweet« Previous | Next »