3/8" MNPT 4,000PSI Quick Connect Brass Coupler

Reliable Connection for High-Pressure Cleaning Systems

The WJ85.300.108HT 3/8" MNPT 4,000 PSI Quick Connect Brass Coupler is designed for dependable performance and long-lasting durability in pressure washer systems. Constructed from solid brass, this coupler provides superior corrosion resistance and consistent sealing strength under demanding conditions. Whether used by professionals or homeowners, it ensures quick, secure, and leak-free connections between hoses, spray guns, wands, and pressure washer accessories—without the need for tools.