• Used by leading boat builders • Individually tested for quality assurance • State-of-the-art construction Manufactured from marine-grade cross-linked polyethylene material, these durable below-deck tanks meet and exceed all industry standards. Moeller permanent fuel tanks are equipped with a Stewart Warner electric sending unit, a 1/4" NPT aluminum withdrawal, and a barbed vent. Not for use with diesel fuel. Please allow 2-1/2" for fittings. Tank capacity: 20 gallons. Dimensions: 11. 75"W x 26"L x 16. 25"D.