![GROCO Thru-Hull Installation Tool [THT-530] Brand_Powerwinch Carbon Cuff Diameter (C): 3](https://cdn.shopify.com/s/files/1/0703/9831/2605/files/75342XL.jpg?v=1740540351)
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Carbon Cuff Diameter (C): 3
(8) Snap Swivels
Storage Temp
Protective cover uses 200 denier nylon ripstop and 200 denier nylon oxford
GROCO Thru-Hull Installation Tool [THT-530] Brand_Powerwinch Carbon Cuff Diameter (C): 3Thru Hull Installation Tool Thru Hull Installation Tool The Concept: THT 530 makes the installation of standard GROCO thru hull fittings possible by a single installer. Slide the thru hull fitting, flanged end first, over the tool. (It will stop at the proper step.) Tie a length of monofilament to the eye and place it into the already cut hole in the hull of the boat. Apply caulking to the flange of the fitting, and pull the fitting through the hole