Check the listing for details. 3/4 In. White Plastic Thru-Hull Bilge Pump and Aerator Hose Fitting, Boats | A2. Condition: New. Listed at 7.99 USD. Made of high impact, corrosion proof nylon. For use above the waterline. Includes back side nut. Thru Hole Fitting. Molded plastic construction with broad flangeHigh Impact NylonMeets ABYC safety standards for small boatsNot recommended for use below the water lineFor 3/4" ID hose1-7/8" outer flange OD1-1/4" maximum hull thickness1" hole required for mountingWhite colorMade of high impact, corrosion proof nylon. For use above the waterline. Includes back side nut. Thru Hole Fitting. Molded plastic construction with broad flangeHigh Impact NylonMeets ABYC safety standards for small boatsNot recommended for use below the water lineFor 3/4" ID hose1-7/8" outer flange OD1-1/4" maximum hull thickness1" hole required for mountingWhite color