Airmar 175WR-4 Transducer Housing Wrench [175WR-4] Marine Hardware | Vents Protects against the sun's ultraviolet

Protects against the sun's ultraviolet rays

Smooths out ride in rough water

Tanning booths

Derlin bearings and stainless steel internal locking mechanism offer smooth adjustments

Airmar 175WR-4 Transducer Housing Wrench [175WR-4] Marine Hardware | Vents Protects against the sun's ultraviolet175WR 4 Transducer Housing Wrench A single handed wrench that holds the main thru hull housing via the 'wrench flats' on the top of the housing to facilitate tightening of the hull nut. Use wrench 164WR 2 or 164WR 3 for the hull nut. For use with: B164 B175 SS164 SS264 IMPORTANT: the design of the housing for these transducers changed slightly in June 2012. This wrench is for the newer design and has an internal width of 2 3 4". If you need a wrench