Extra Long Thru Hull Fitting with Nut - 1-1/4"

The Groco THXL Series XL Bronze Thru Hull Fittings are engineered for boaters seeking reliable, heavy-duty solutions for thick hull installations. These extra-long thru hulls are crafted from high-quality C83600 bronze, ensuring exceptional corrosion resistance and durability in harsh marine environments. Designed with a unique NPSM/NPT combination thread, the THXL Series offers versatile compatibility for a wide range of marine plumbing setups.

Why Choose Groco THXL Series?

• Trusted Marine Quality: Groco is renowned for precision-engineered marine hardware, ensuring peace of mind for boaters.
• UL Listed: Meets UL 647B standards for marine thru hull fittings, confirming safety and reliability.
• Flexible Applications: Suitable for both new builds and retrofits where hull thickness exceeds standard fitting lengths.

Frequently Asked Questions

What does the "-W" mean in the model number?
The "-W" suffix indicates the fitting is supplied with a nut for easier and more secure installation.

Are these fittings suitable for saltwater use?
Yes, the C83600 bronze construction provides excellent corrosion resistance, making them ideal for both freshwater and saltwater environments.

Can I use these thru hulls for thick hulls or cored hulls?
Absolutely. The extra-long thread design is specifically intended for use in thick or cored hull sections, providing a secure, watertight fit.