Deck Fill for Carbon Canister System - Angled Body & Scalloped Stainless Steel CapPressure relief systems are designed with automatic diurnal emission control and overpressure relief safety valves built into the cap of the fill. The overpressure relief safety valves are engineered to release pressure above 1 psi. The high-flow vacuum valves allow fresh air to enter the fuel tank to replace the fuel being consumed by the engine. Other components of a pressure relief system are designed to ensure the tank fills to the proper level every time without spit-back or well-back. Features:Sold as a single pack that contains two deck fillsFits 1-1/2 (inch) fill hoseCompatible with Ethanol blended fuelsDesigned and tested to prevent water from entering the fuel systemAll Attwood pressure relief systems are designed to ensure water does not enter the fuel tank and are compatible with Jerry Can and marine nozzle refuelingEPA / CARB CertifiedDual 1 psi overpressure relief safety valves built into the deck fill capsAutomatic nozzle shutoff 4-18 gpmDeck Fill for Carbon Canister System, angled, stainless steel, single pack