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Your cart is empty.Experience ultimate reliability on the water with T-H Marine's Plastic Thru-Hull Fittings—the leading choice for boat enthusiasts and professional builders alike. As the top plastic thru-hull supplier in the U.S.A., T-H Marine guarantees unmatched quality and durability in every marine hose fitting we produce, trusted by more OEM boat builders than any other brand on the market. Crafted using high-quality virgin materials, our durable thru-hull parts are designed to withstand the harshest marine conditions. Each fitting is UV stabilized, ensuring that your investment is protected from sun exposure, enhancing longevity and reliability. Whether you require a sturdy black option or an elegant chrome plated thru-hull fitting, we offer a diverse selection tailored to meet both functional and aesthetic needs. Our range includes essential products such as the TH-750XLCP Extended Chrome Plated Thru-Hull, the TH-750 Standard Black Thru-Hull, and various extended lengths for those unique installation requirements. Each of our thru-hull fittings is engineered to ensure a secure fit with the most prominent hose manufacturers, delivering peace of mind when you set sail. We understand that compatibility is critical, and our thru-hull fittings are specifically designed with industry-standard sizes in mind, accommodating even the thicker transoms found on many modern vessels. Although some installations may present challenges, we strive to provide resources that simplify the process. Our commitment to OEM integrity guarantees that T-H Marine products meet stringent quality standards, making them a preferred choice for both boat upgrades and new builds. Investing in T-H Marine’s quality marine products means you won’t have to settle for less. Elevate your boating experience with our reliable thru-hull fittings, designed not only for performance but also for a polished look on the water. Explore our extensive selection of thru-hull fittings today. Whether for replacement or installation on new projects, choose T-H Marine for your plastic thru-hull needs—where quality and customer satisfaction are our top priorities. Don’t miss out on the opportunity to ensure your boat is outfitted with the best durable thru-hull parts available on the market.
B. Proulx
Reviewed in the United States on August 26, 2021
As displayed
Bert P
Reviewed in the United States on December 3, 2021
Great quality.
Daniel Jenkins
Reviewed in the United States on November 23, 2021
Plenty of length for thicker transom installation
Customer
Reviewed in the United States on March 12, 2020
Works just fine!
Brandi Lloyd
Reviewed in the United States on January 11, 2020
Good quality and fit as expected
Chris Blades
Reviewed in the United States on June 18, 2019
Fast shipping even though it’s not listed under prime. Worked great for the thicker transom on my boat
DAG
Reviewed in the United States on May 23, 2019
Needed extended threads to reach thru hull on my old fibreglass bass boat. Smaller nut actually worked better than the cracked one i was replacing.
Charles
Reviewed in the United States on December 9, 2019
Just what I needed for pump to go through kayak
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