100TECH Marine Fuel Sending Unit Float Replacement 16"(410mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms

100TECH Stainless Steel Fule Tank Sending Unit is Made With OKI Reed Switch(Imported from Japan). It is the Direct Replacement for Arm Type sender. The Advantage of This Fuel Level Sender Over Thick-Film Swim Arm Type Level Sender is the Reed Switch's Durability and Reliability.   Additionally, No Moving Parts to Break. No Adjustment Needed for Tank.
The Fule/Water Level Sensor with American standard output 240-33 ohms (240 ohms at empty, 33 ohms at full). If you Need Lengths Other than 4"-32", Please Contact us Directly for More Information.
[Easy to Install] The Fuel Level Sending Unit Comes with Gasket,Mounting Screws,Well-Written and Illustrated instructions; The Wiring Instructions are Straight Forward and Easy to follow. 
SAE 5 hole Mounting Pattern, Heavy Duty 316 Stainless Steel and Rugged Construction.  Wide Application: It Could Support Fuel Level Gauge and Water Level Gauge for Boat/Auto.
 100Tech Guarantees with 1 Year Limited Warranty & Free Lifetime Technical Support Attention: To Allow the Fule Sender not Hit the Bottom of the Tank, Please Measure from the Top of Your Tank to the Bottom on the Outside and Subtract 1 Inch the Length of Sender. 
[The Size of Float] The Diameter of Float is 1.38"(35mm). If You Have to Drill the hole, Diameter 1.50"(38mm) Hole Would be Perfect.