Groco Thru-Hull Installation Tool – Boat Pump & Plumbing Part is organized for marine pumps & plumbing shoppers who need a clear, professional marine parts buying experience.Thru-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 and against the hull from inside the boat. Thread the mono-filament through the locknut or seacock. With the fitting pulled firmly against the hull the locknut or the seacock may be screwed onto the fitting. THT-530 fits GROCO Thru-hull Fitting SFitment & Product DetailsBrand / Manufacturer: Groco Search-optimized by brand, system, part type, and fitment cues. Verify compatibility with your original part number, engine model, and application before ordering. Built for boat owners, e-commerce shoppers, and professional marine service teams.
