Made from marine grade cross-linked polyethylene for light weight and durability, all tanks are USCG, NMMA and ABYC compliant. Mechanically vented cap floats, and is easy to grip, with ribbed design. Tank includes 90 1/4NPT Moeller patented Poplock aluminum withdrawal elbow. It swivels 360 without losing its seal. Injection molded 2 1/4 fill neck with gauge and vent 43L x 15W x 6H One year warrantyMore details about product 12 Gallon Topside Fuel Tank