• GROCO Thru-Hull Installation Tool [THT-530]
  • GROCO Thru-Hull Installation Tool [THT-530]
1 2

GROCO Thru-Hull Installation Tool [THT-530]

$148.89
$211.00
$148.89
Shipping calculated at checkout.

SKU: CWR-75342   UPC: 742985102781

[COUNT] shoppers are looking at this right now
  • Hurry, only 2 items left in stock!

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 Sizes from 1/2" through 3"

🚚 Shipping & Fulfillment

Many items at Lotz Outdoors ship the same day when ordered
by 2pm EST, so you can get your gear quickly for your next adventure.

Some products are fulfilled directly from our trusted
third-party partners. As a result, these items may:

• Ship separately from other items in your order

• Have different shipping rates

• Not be eligible for free shipping promotions

We work hard to keep shipping fast, reliable,
and transparent across our entire catalog, and any differences will be clearly
shown at checkout.
⚠️ Shipping restrictions

Shipping restrictions apply to certain products. By purchasing, you confirm compliance with all local, state, and federal laws.

We reserve the right to cancel any order based on our compliance policies.
⚠️ California Proposition 65 Warning

⚠️ WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

This may include but is not limited to:
- Lead and lead compounds
- Nickel and nickel compounds
- Phthalates (DEHP, DBP, BBP, etc.)
- Bisphenol A (BPA)
- Cadmium and cadmium compounds

For more information go to www.P65Warnings.ca.gov

Discount available for Military, First Responders, Medical Workers and Teachers

Logo for GOVX ID, a service used to verify military, first responder, nurse or teachers to qualify them for discounts Get Verified
GROCO Thru-Hull Installation Tool [THT-530]
GROCO Thru-Hull Installation Tool [THT-530]