Airmar 75WR-4 Transducer Housing Wrench [75WR-4] Brand_Octopus Autopilot Drives The Style 393 antenna is

The Style 393 antenna is electrically the same as the industry standard Style 390

SeaTalk 3-Way Junction Block

All models include the Marinco Easy Lock System Ring - a simple 1/8 twist of the ring provides a fast

6' (2 M) 3/16" of high tensile galvanized steel chain

Includes Depth Range Shading for up to 10 depth ranges

Airmar 75WR-4 Transducer Housing Wrench [75WR-4] Brand_Octopus Autopilot Drives The Style 393 antenna is75WR 4 Transducer Housing Wrench A single handed wrench that holds the main thru hull housing via the 'wrench flats' on the side of the housing to facilitate tightening of the hull nut. Use wrench 75WR 2 or 75WR 3 for the hull nut. For use with: B75 SS75 Specifications: Type: Tools Box Dimensions: 1"H x 5"W x 10"L WT: 0. 6 lbs