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The PARKER BD-12339 is a brass garden hose fitting designed to connect a female hose thread to a male hose thread in a single compact adapter. It handles a compatible hose diameter of 0.375 inches and carries a thread size of 3/4 x 3/8 inches. The all-brass construction provides corrosion resistance and durability in both indoor and outdoor water supply applications. Plumbers, irrigation technicians, and facilities maintenance professionals install this type of fitting when adapting mismatched hose thread sizes in low-pressure water distribution lines.
This fitting is suited for residential and light commercial applications where a female hose connection must transition to a male hose thread of a smaller diameter. Typical scenarios include connecting garden hose assemblies, irrigation manifolds, and outdoor spigot accessories where a 3/4-inch female hose inlet meets a 3/8-inch male hose outlet. The compact form factor allows installation in confined spaces around utility connections and hose bibs.
Designed as an OEM-style replacement or add-on adapter for garden hose assemblies, irrigation systems, and outdoor plumbing connections using standard female-to-male hose thread configurations in 3/4 x 3/8-inch sizes.
This fitting is typically installed by a licensed plumber or irrigation technician. Shut off the water supply completely before removing any existing fitting or making new connections. Apply thread seal tape or pipe thread sealant appropriate for water service to ensure a leak-free joint. Do not overtighten brass fittings, as excess torque can crack the body or damage mating threads.
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