Groco 25 mm thru-hull

GROCO 25 mm (1-inch) Thru-Hull Fitting | Marine Grade Plumbing for Ultimate Safety

Ensure the integrity and safety of your vessel with the GROCO 25 mm (1-inch) Thru-Hull, a cornerstone of reliable marine plumbing systems. Engineered for boaters who refuse to compromise on quality, this fitting provides a robust and watertight connection point through your boat´s hull. Ideal for a wide range of applications, including intake and discharge lines for engines, generators, air conditioners, and drains, this GROCO thru-hull is designed for exceptional performance and long-lasting durability in the demanding marine environment. Trust in the GROCO legacy of quality to protect your investment and provide complete peace of mind, whether you are docked at the marina or navigating open waters.

Key Benefits:

* Uncompromising Safety: Built to meet and exceed the most rigorous industry standards, including UL Listing and ABYC H-27 compliance. This certification ensures the fitting is suitable for use below the waterline, providing a critical layer of security against potential leaks and failures.
* Superior Durability: Expertly crafted to offer exceptional resistance to corrosion and electrolysis, this thru-hull is designed to withstand the harsh effects of saltwater and constant submersion. Its robust build guarantees a long service life, reducing maintenance needs and the risk of premature replacement.
* Watertight Performance: The precision-machined design, featuring a wide flange head, provides an extensive surface area for sealant application. This ensures a superior, leak-proof bond with the hull, maintaining a dry and secure bilge.
* Optimized Flow: Engineered for full, unrestricted flow, this 25 mm fitting maximizes the efficiency of your boat’s plumbing systems. It prevents bottlenecks in intake or discharge lines, allowing pumps and systems to operate at their peak capacity.
* Secure Installation: Featuring heavy-duty, deep-cut buttress style threads, this fitting provides maximum engagement and holding power, significantly reducing the risk of cross-threading or stripping during installation. This robust design ensures the fitting stays firmly in place, even under stress and vibration.

Main Features:

* A substantial flange head design provides a broad, stable base for creating a secure and watertight seal against the hull.
* Features robust, high-strength threads designed for maximum holding power and a secure connection with the included mounting nut.
* The fitting is designed to integrate seamlessly with corresponding seacocks and ball valves, creating a solid and reliable plumbing assembly.
* A smooth, finished interior promotes efficient water flow and reduces turbulence within the plumbing line.
* Includes a heavy-duty nut specifically designed to match the fitting´s threads and provide the clamping force needed for a secure installation.

Technical Specifications:

* Product Type: Thru-hulls
* Brand: GROCO
* Hose Connection Size: 25 mm / 1 inch
* Thread Type: NPSM (National Pipe Straight Mechanical)
* Maximum Hull Thickness: Accommodates a wide range of standard hull thicknesses
* Certifications: UL Listed, Compliant with ABYC H-27 Standards
* Application: Suitable for use above and below the waterline