Moeller 035724-10 Diesel Sending Unit with ReturnTo meet the needs of a return line found on diesel and some fuel injection engines, Moeller's 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.; Fits Tank Depth 12"-24"