Thru-Hull 1 LONG Bronze
No restocking fees on eligible returns
You have 30 days to request a return. All sale items are final sale.
Customer pays return postage. Return postage is reimbursed if we made a mistake.
Thru Hulls
T-hull 1 Long Brz
TH Mushroom head, cast bronze, machine finish, completely machined thru-hull. Caulking groove cut beneath head. Stocked in regular and extra-long (XL) lengths.
| Unit | Shank Length" | Flange Dia." |
| TH38 | 2-1/4 | 1-9/16 |
| TH50 | 2-1/8 | 1-13/16 |
| TH75/XL | 2-3/8/5-9/16 | 2-3/8/2-1/16 |
| TH100/XL | 2-3/4/5-9/16 | 2-3/8/2-1/2 |
| TH125/XL | 3-1/4/5-9/16 | 3-1/16 |
| TH150/XL | 3-1/2/5-9/16 | 3-3/8 |
| TH-200 | 4 | 3-5/8 |
| TH-250 | 4 | 4-1/32 |
| TH-300 | 5-1/4 | 4-11/16 |
- Brand: Buck-Algonquin
- Manufacturer part #: TH-100-XL
- Sold as: EA
Product Details
Extra-long bronze thru-hull with a 1-inch NPS thread and a 5-9/16-inch stem under the flange. Product reference.
Parts Desk Insight
The extra stem length must accommodate the hull and backing arrangement while leaving adequate thread engagement. NPS is a straight thread: confirm the mating fitting and installation method instead of assuming any nominal 1-inch pipe fitting will seal correctly.
Manufacturer Schematic / Parts Diagram
Shipping information
In-stock and OEM parts: ship same or next business day.
Supplier-stock items are usually ready for pickup or shipping within 24 hours of ordering.
Special-order timing may vary.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.