SKU: CW74254
UPC: 742985004917
MPN: PTH-5062
The GROCO 1/2" NPT x 1/2" or 5/8" ID Bronze Pipe to Hose Straight Fitting is a marine-grade connector engineered for reliable fluid transfer in demanding marine and industrial applications. This straight fitting bridges male NPT threaded pipe connections to standard hose barbs, making it essential for seawater cooling systems, bilge installations, fuel lines, and general plumbing aboard vessels and in stationary equipment. The design eliminates the need for separate adapters, reducing connection points and potential leak sources in critical systems.
Constructed from C83600 bronze, this fitting delivers superior corrosion resistance in saltwater and freshwater environments where standard brass or steel would deteriorate rapidly. The NPT (National Pipe Thread) male connection provides a tapered thread that creates a mechanical seal without additional sealant, while the dual-size hose barb accommodates both 1/2" and 5/8" ID hoses for installation flexibility. UL Listed to standard 647B, the fitting meets rigorous safety and performance certifications, ensuring compliance with marine codes and equipment manufacturer specifications. The compact 1 x 1 x 3 inch profile and 0.1 lbs weight make it easy to integrate into tight engine spaces and below-deck systems.
Marine technicians, boat builders, and equipment maintenance specialists rely on GROCO fittings for original equipment and retrofit installations where durability and leak-free performance are non-negotiable. This fitting is ideal for connecting through-hull fittings, seawater strainers, heat exchangers, and raw water systems where standard flow rates are sufficient and vibration resistance is critical. Installation is straightforward—apply plumber's thread seal tape to the NPT male end, hand-tighten into the pipe port, then secure the hose barb with a stainless steel hose clamp. Verify hose ID before purchase to ensure proper fit on the selected barb size, and inspect regularly for any weeping at the NPT connection point.
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