Groco 19 mm thru-hull

GROCO 19mm (3/4") Thru-Hull: Uncompromising Safety for Your Vessel´s Plumbing

Ensure the integrity of your vessel with the GROCO 19mm (3/4") Thru-Hull, the benchmark for safety and reliability in marine plumbing systems. As a critical component for any below-the-waterline application, this fitting is engineered by GROCO, a leader in marine hardware, to provide a secure, leak-free, and durable connection, giving you unparalleled peace of mind whether you´re at the dock or on the open water. Designed for discerning boat owners, refitters, and professional boat builders, this thru-hull is the foundation of a robust and long-lasting plumbing system.

Key Benefits for Ultimate On-Water Confidence

Investing in a high-quality GROCO thru-hull fitting translates directly to the safety and longevity of your boat. Experience the core benefits of a superior design:

* Unwavering Reliability: Eliminate a common point of failure. This fitting is built for permanent installation below the waterline, providing a dependable conduit for engine raw water intakes, bilge pump outlets, and scupper drains without the risk of degradation or failure associated with lesser-quality alternatives.
* Superior Hydraulic Performance: The full-flow design ensures unrestricted water movement. This is crucial for the efficient operation of engine cooling systems and high-capacity bilge pumps, allowing your essential equipment to perform at its peak capability when you need it most.
* Enhanced Hull Security: A wide, heavy-duty flange base distributes the load from the seacock across a larger surface area of the hull. This significantly reduces stress on the fiberglass or wood, preventing crazing or damage and ensuring a more secure and stable installation.
* Simplified, Secure Installation: Precision-machined threads and a substantial nut ensure a smooth, positive engagement with a GROCO seacock or backing block. This creates a powerful, watertight seal that you can trust for years to come.

Main Features Engineered for the Marine Environment

This GROCO 19mm fitting is packed with features that set it apart as a premier choice in the ´Thru-hulls´ category.
* Heavy-duty, robust construction designed to withstand the harsh marine environment, including constant submersion and potential impacts.
* Industry-standard mushroom head profile, which is ideal for deflecting debris and providing a smooth, low-drag profile against the hull.
* Full-flow, non-restrictive internal bore for optimal water passage.
* Precision-machined straight pipe threads (NPSM) designed for perfect, secure mating with corresponding female NPT threads on a seacock or ball valve.
* A substantial, cast mounting nut is included, designed to provide immense clamping force without stripping or deforming.
* Engineered and built to meet and exceed ABYC (American Boat and Yacht Council) standards for below-the-waterline components.

Technical Specifications:

* Part Reference: GROCO TH-750 Series
* Hose Connection Size: 19 mm / 3/4 Inch
* Thread Specification: 3/4" NPSM (Straight Thread)
* Required Installation Hole Saw Size: 1-3/8" (35 mm)
* Flange Diameter: 2-1/4" (57 mm)
* Maximum Hull Thickness: 2-1/8" (54 mm)
* Overall Length: 3-3/4" (95 mm)

Whether you are building a new yacht, refitting a classic sailboat, or performing essential maintenance on your powerboat, the GROCO 19mm (3/4") Thru-Hull is the professional-grade choice for any system requiring a connection through the hull. Upgrade your boat´s plumbing with the confidence that comes from using a product synonymous with quality, durability, and marine safety