Description Attwood Oval Shaped Vented Fuel Deck Filler Flip Lid- Straight Black 38mm Available in white or black cap in straight or angled configuration. Hinged cap with push-button opening and closing mechanism. ISO gasoline symbol stamped into both the cap and the interior surface of the deck fill.   115 x 70mm base size OVAL Black Cap with Breather Tail Attwood’s new plastic vented deck fills incorporate an industry first patent-pending waterproof screen that eliminates the possibility of water entering a boat’s fuel system, while also allowing your boat’s engine to breath freely. These new deck  fills exceed the ISO 21487 standard for minimum required venting area and meet all ABYC and US Coat Guard safety standards for marine fuel systems. Attwood’s unique design includes an integral tank vent with flame arrestor and anti-surge technology. CE certified to ISO 21487 enabling sales world wide. Integrated patent-pending waterproof screen eliminates the possibility of water entering your boat’s fuel system Attwood’s unique design includes an integral tank vent with flame arrestor and anti-surge technology, preventing fuel from escaping into the environment Engineered body designed for extreme strength Fits standard 38mm or 11/2″ fuel fill hose and 16mm  5/8″ vent hose Base size is 115mm x 70mm Vented Fuel Deck Filler with Hinged Lid / Flip Lid Cap is incorporated in the hinged lid. 192300