GROCO 1-1/2" NPT x 1-1/2" ID Bronze Pipe to Hose Straight Fitting

The GROCO 1-1/2" NPT x 1-1/2" ID Bronze Pipe to Hose Straight Fitting is a marine-grade connector engineered for reliable fluid transfer in saltwater and freshwater applications. This straight fitting joins male NPT threaded pipe connections to 1-1/2" ID hose with a secure, leak-resistant interface. Cast from C83600 bronze, the fitting delivers corrosion resistance and durability in harsh offshore and coastal environments where standard steel fittings would degrade rapidly.

The C83600 bronze composition provides superior galvanic protection against seawater corrosion, a critical advantage for boat cooling systems, fuel transfer, and engine intake lines. The straight configuration eliminates flow restrictions and simplifies installation in tight spaces. UL Listed to standard 647B, this fitting meets stringent certification requirements for marine applications. Available in sizes from 1/2" to 5", the 1-1/2" variant is among the most common sizes for mid-range marine plumbing systems. Standard flow rating accommodates typical marine system pressures and volumes without throttling performance.

This fitting is suited for professional marine technicians, boat builders, and fleet maintenance operations. It serves raw-water cooling loops, through-hull fittings, fuel system connections, and emergency backup cooling systems where temperature stability and corrosion resistance are non-negotiable. The bronze construction is ideal for vessels operating in salt environments where aluminum or ferrous metals fail prematurely. Note that C83600 bronze is not compliant with NSF-61 certification and therefore is not suitable for potable drinking water applications—its use is restricted to marine cooling, fuel, and industrial fluid transfer.