GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut

The GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut is a marine-grade through-hull assembly designed for serious boaters and anglers who require reliability in both saltwater and freshwater environments. This fitting serves as the primary penetration point for seacocks, strainers, and through-hull plumbing applications, particularly where standard-length fittings are insufficient.

Constructed from solid stainless steel, this fitting is resistant to corrosion, galvanic action, and salt spray. Its extra-long design accommodates thicker hull materials and heavily insulated bulkheads without the need for external backing plates or adapters. The fitting's precision threads ensure compatibility with industry-standard seacocks and strainers, while the extended barrel length guarantees complete penetration through the hull for watertight integrity when properly bedded with marine sealant.

Anglers and boat owners looking to upgrade aging through-hull systems or build custom installations will benefit from GROCO's reputation for durability in commercial fishing fleets and offshore operations. This fitting is ideal for applications such as engine cooling, live wells, and washdown systems, making it a versatile choice for various marine setups.