Garmin B175H Bronze 20° Thru-Hull Transducer - 1kW, 8-PinGarmin B175H Bronze 20 Thru Hull Transducer 1kW, 8 Pin for accurate depth and fish finding in boats with fiberglass or wood hulls. Engineered for stealthy integration, this bronze through hull transducer sits flush with the hull, protruding less than 1 4" and is rugged enough to sit on trailer rollers or bunks without damage. Key features Highpower performance: 1kW output with an 8pin connector for reliable sonar data. Low drag, high durability: Flush