Moeller 035768-10 Reed Switch Fuel Sending Unit - 21 Inch Tank Depth for Marine & RV Fuel Level Monitoring | Compatible with Boats, Yachts & Motorhomes

For tanks 21" (553mm) deep

Suitable for gasoline, ethanol, diesel, bio-diesel, and non-potable water

Reed Switch senders dramatically reduce "slosh fluctuations" which are inherent with swingarm units

Designed for all types of marine vessels

Sender top-mounts in aluminum, plastic, or stainless steel fuel tanks

Materials (stainless-steel w/ nitrile rubber float) provide superior corrosion protection

Black wire is ground