GROCO Thru-Hull Installation Tool [THT-530] Brand_GROCO Orbit is ideal for salons

Orbit is ideal for salons and staterooms as well as helm stations

Ultra flexible (Type 3) stranding resists fatigue due to vibration and flexing

Snap-in Installation - Simply bore a 1

5 or the 5

Package Qty: 25

GROCO Thru-Hull Installation Tool [THT-530] Brand_GROCO Orbit is ideal for salonsThru 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