Reed Switch Sending Units dramatically reduce slosh fluctuations over swingarm units.These OEM-compatible, Reed Switch Sending Units feature engineering-grade, thermo-polymer, fully adjustable reed style fuel level senders designed for gas, ethanol, diesel, biodiesel and non-potable water use. They fit the industry-standard bolt-hole pattern and top-mount in aluminum, plastic or stainless steel fuel tanks. Calibrated for 240-33 Ohm gauges. Stainless steel construction with nitrile rubber float provides efficient performance and corrosion protection, both inside and outside the tank. Select a sending unit one inch less than your tank depth. Gasket and screws included.Key FeaturesStainless steel constructionNitrile rubber floatA direct Original Equipment Manufactured sender replacement by RochesterCollects fuel information more consistently than swingarm sendersFuel measurements are taken from the floatSender length is 1″ shorter than tank depthCalibrated to the Industry Standard of 240-33 OhmsComplete with 5 hole gasket and screwsMeet ISO 10088 & 8846 and ABYC H-24 requirements