Groco Thru-Hull Install Tool – THT-530

£0.00

The THT-530 makes the installation of standard GROCO thru-hull fittings possible by a single installer. Fits GROCO Thru-hull Fitting Sizes from 1/2″ through 3″.

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 Sizes from 1/2″ through 3″

Unsure on your exact requirement, call our expert technical advice team on 01202 624244 or use our live chat functionality.

  • Single tool
  • Makes installation easier alone
  • Fits 1/2″ through 3″ thru-hull fitting sizes
  • Made in the USA
  • THT-530 Install Tool
  • One size