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The DIXON VALVE COUPLING 2900510C is a barbed push-on hose male connector manufactured from brass, designed for secure, tool-free hose attachment in fluid transfer applications. The fitting features a 5/8-inch UN thread size with a 3/8-inch outside diameter and a 5/16-inch inside diameter, making it well suited for low-pressure hose assemblies in plumbing, irrigation, and light industrial systems. Its barbed design grips the hose inner wall to maintain a reliable seal without clamps, though clamps may be added for higher-demand applications. Licensed plumbers, pipefitters, and maintenance technicians typically install this type of fitting.
This connector is intended for use in residential and light commercial fluid transfer systems where a male threaded end must mate with standard UN-threaded ports or valves. The push-on barb end accepts flexible hose with a 5/16-inch inside diameter. Common install scenarios include connecting flexible supply lines to valves, manifolds, or equipment inlets. The brass construction provides corrosion resistance suitable for water and many compatible fluid media.
Designed as an OEM-style replacement or direct-install fitting for flexible hose assemblies requiring a 5/8-inch UN male thread and a 5/16-inch inside diameter barb end in residential and light commercial plumbing or fluid transfer systems.
Installation is typically performed by a licensed plumber or qualified pipefitter. Shut off fluid supply and relieve system pressure before removing or installing any fitting. Thread the male UN end into the mating port by hand first to avoid cross-threading, then tighten with an appropriately sized wrench to avoid over-stressing the brass threads. Verify hose is fully seated past all barbs and add a clamp if system pressure or application requires it.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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