The SENDING UNIT 13" (035764-10) is a Moeller reed switch sending unit that requires a dash-mounted gauge. This sending unit collects fuel level information more consistently than swingarm senders. They accomplish this by measuring the float, which is still a moving part. The fluctuation, however, is much lower because the range of motion is much smaller. The SENDING UNIT 13" (035764-10) is made of durable 316 stainless steel that provides corrosion-resistant material. It is designed for use in gasoline applications, calibrated to 33 to 240 Ohms. It has 12 inches in length for 13 inches in tank depth. Key Features: It is a Moeller reed switch sending unit. It collects fuel level information more consistently than swingarm senders. It is made of durable 316 stainless steel that provides corrosion-resistant material. It is designed for use in gasoline applications, calibrated to 33 to 240 Ohms. 12 inches in length for 13 inches in tank depth Specifications: Brand: Sea Star Solutions SKU: 035764-10 UPC: 739729000038 Weight: 0.70 LBS Unit Of Measure: EA Manufacturer Part Number (MPN): 035764-10 For tanks 13" (305mm) deep, stainless-steel w/ nitrile rubber float