The Airmar 117WR-4 is a dedicated single-handed wrench designed to grip the wrench flats on the side of a thru-hull transducer housing, keeping it stationary while you torque down the hull nut. Compatible with 2-inch bronze and stainless steel housings, it pairs with the 117WR-2 or 117WR-3 for a complete installation setup. Note: this wrench is not compatible with the CA500 camera housing.

Specifications:

• Single-handed wrench design for thru-hull transducer housing installation
• Grips via wrench flats on the side of the housing to hold it in place during hull nut tightening
• Compatible with 2" bronze and stainless steel housings: P617V, B617V, SS617V
• Use with wrench 117WR-2 or 117WR-3 for tightening the hull nut
• Not compatible with the CA500 camera housing