Groco STH-100-W 1" Bronze Scoop Thru-Hull Fitting with Locking Nut

The Groco STH-100-W is a 1-inch bronze scoop thru-hull fitting designed for marine raw water intake applications. This heavy-duty fitting features a streamlined scoop design that efficiently draws water while the vessel is underway, making it ideal for engine cooling systems, air conditioning, washdown pumps, and other non-potable water systems.

Key Features:

• Cast from high-quality bronze for superior corrosion resistance in marine environments
• Scoop design creates positive water flow when the vessel is in motion
• 1-inch NPT thread size for standard plumbing connections
• Includes locking nut for secure installation through hull material
• White polymer cap provides protection and visibility
• Suitable for powerboats, sailboats, and other marine vessels

Important: This fitting is NOT approved for potable (drinking) water systems. Use only for raw water intake applications such as engine cooling, air conditioning, generator cooling, or deck washdown systems.

Groco Marine has been manufacturing premium marine plumbing products since 1932, offering reliable performance and durability for demanding saltwater environments.