GROCO Thru-Hull Installation Tool 2X-Large Tall Low amp draw means long

Low amp draw means long battery life

Mounting: Clearance for 3/8" [M10] stud

Electric Field Bilge Switch With Time Delay

Ideally suited for fiberglass hardtop installations and allows for a very clean and finished installation

GROCO Thru-Hull Installation Tool 2X-Large Tall Low amp draw means longThru 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