Gasoline Deck Fill - 1-1/2 inch Stainless Steel AlloyFor 1-1/2 (inch) inner diameter hose. This deck fill is imprinted and color-coded to specify GASOLINE. The flush cap is slotted for a separate key and features an O-ring that seals the cap watertight. Cap is attached by a stainless steel, beaded chain. Long neck accommodates thick deck laminations. Key sold separately.Features: Highly-polished finish "Gasoline" imprint with Red Color Code (Not for use with EPA Certified systems) Specifications: 3-1/4 (inch) Fill Neck Length 1-7/8 (inch) installation hole size 3-inch flange size Fits 1-1/2 (inch) I.D. Hose *Requires a bonding wire to prevent sparking when the nozzle is inserted on gasoline and diesel models per USCG and ABYC H-24 requirements