Moeller 035724-10 Diesel Sending Unit with Return To meet the needs of a return line found on diesel and some fuel injection engines, Moellers patent-pending design ensures all needs are met. Features Internal components will not rust or corrode. Float rotates easily in 90 degree increments for tank wall baffle clearance. Designed for use in gasoline or diesel, not intended for use in water. Complies with all industry standards for general installation fire test ABYC H-25. Two year warranty. Fi