GROCO 2-1/2" Bronze High Speed Thru-Hull Fitting w/Nut

The GROCO 2-1/2" Bronze High Speed Thru-Hull Fitting w/Nut is an essential component for high-performance vessels requiring consistent water intake while underway. Whether outfitting a large sportfishing yacht or a commercial hull, this fitting ensures critical systems receive the necessary volume of water without the turbulence associated with standard designs. Maintaining adequate flow is vital for engine cooling and high-volume livewell systems, making this high-speed variant a preferred choice for serious mariners.

Constructed from premium C83600 bronze, this fitting offers exceptional corrosion resistance in harsh saltwater environments for long-term durability. The specialized high-speed design features a low-profile head that significantly reduces drag while simultaneously increasing flow compared to traditional thru-hull alternatives. It utilizes a versatile NPSM / NPT combination thread, allowing for a secure and adaptable connection to various marine plumbing and valve configurations.

This 2-1/2-inch fitting is ideal for boat owners looking to upgrade their intake systems for better efficiency at cruising and trolling speeds. The included bronze nut provides a robust mechanical bond to the hull, ensuring reliability against the constant vibration and pressure of open-water navigation. When searching for specifications that meet professional maritime standards, this fitting stands out as a reliable solution for heavy-duty marine applications.