GROCO 1" NPT x 1" ID Stainless Steel Pipe to Hose Straight Fitting

The GROCO 1" NPT x 1" ID Stainless Steel Pipe to Hose Straight Fitting is a marine-grade connector designed for anglers, boaters, and water system integrators who demand reliability in both saltwater and freshwater environments. This fitting bridges rigid NPT pipe threads to flexible hose connections, making it essential for through-hull installations, bilge systems, fuel lines, and cooling water applications where vibration and corrosion constantly test equipment integrity.

Constructed from 316 stainless steel, this GROCO fitting resists the corrosive effects of saltwater spray, fuel vapors, and UV exposure that can degrade brass or mild steel alternatives over time. The 1" NPT male connection accepts standard marine plumbing fittings and through-hull assemblies, while the 1" ID hose barb is specifically designed for 1" inside diameter hoses, ensuring secure barb engagement and hose clamp retention.

This fitting is ideal for both recreational and commercial boaters who are installing or maintaining intake manifolds, seawater strainers, and other critical systems. Its straight configuration eliminates flow disruption and maintains full bore diameter, reducing pressure drop in raw-water cooling systems and fuel delivery lines—essential for engines and systems where consistency matters.