Moeller Marine Electric Fuel Tank Sending Unit with Diesel Return Line (12" to 24" Deep Tanks, 35 to 240 Ohm's) Universal electric sending unit fits tanks with a depth of 4&quot;&quot; to 27&quot;&quot; Swing arm float easily rotates in 90&#176; increments For tank wall or baffle clearance Internal measurement components will not rust or corrode Calibrated for 33-240 ohms