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The BD MANUFACTURING RBMA2510 is a brass reducing adapter fitting designed to connect a 1-inch male threaded (MPT) end to a 1.25-inch barbed end. This fitting is used to transition between two different pipe or hose sizes in fluid-handling systems. The all-brass construction provides corrosion resistance and durability in wet or chemical-exposed environments. Plumbers, irrigation technicians, and pool or spa service professionals typically install this type of fitting when downsizing or upsizing between threaded pipe connections and barbed hose connections in low- to moderate-pressure applications.
This reducing adapter is suited for residential and light commercial plumbing, pool and spa circulation systems, irrigation lines, and similar fluid distribution applications. The male threaded end connects to standard female-threaded pipe fittings or valves, while the barbed end secures to flexible hose tubing sized at 1.25 inches. It is a straightforward, no-specialty-tool fitting used in new installations and service replacements alike.
Designed as a standard reducing adapter for use in residential and light commercial plumbing, pool, spa, and irrigation systems requiring a transition from 1-inch male threaded pipe to 1.25-inch barbed hose connections.
Installation is typically performed by a licensed plumber or qualified service technician. Shut off water supply and depressurize the line before beginning work. Apply thread sealant tape or pipe dope to the male threaded end before threading into the female-threaded fitting to ensure a leak-free seal. Do not overtighten the threaded connection, as brass fittings can crack under excessive force. Secure the barbed end with an appropriately sized hose clamp to prevent hose pullout under pressure.
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