Groco HSTHXL-750-W 3/4" Bronze Extra Long High Speed Thru-Hull Fitting with Nut

The Groco HSTHXL-750-W is a premium 3/4" bronze thru-hull fitting engineered for high-performance marine applications where maximum flow and minimum drag are critical. This extra-long design provides enhanced installation flexibility for thicker hull configurations while delivering superior water flow compared to standard thru-hull fittings.

Key Features:

• High-speed design maximizes water flow and minimizes drag for optimal performance
• Extra-long NPSM/NPT combination thread accommodates thicker hull installations
• Constructed from durable C83600 bronze for excellent corrosion resistance in saltwater environments
• Includes bronze mounting nut for secure installation
• 3/4" NPT threaded connection for compatibility with standard marine plumbing fittings

Ideal for high-volume water intake applications including livewell systems, washdown pumps, and engine cooling systems. The extra-long threaded shank ensures a secure, watertight seal even in thick-hull vessels or when additional backing blocks are used. Groco's precision manufacturing ensures smooth interior surfaces that promote unrestricted flow and reduce turbulence.