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The UNDERHILL A-QCMM is a two-pack of male quick-connect adapters machined from solid brass for use in professional-grade irrigation and hose management systems. Each adapter converts a standard hose, nozzle, or sprinkler attachment to a quick-connect-compatible male fitting, allowing one-click attachment to any compatible quick-connect female receptacle. The solid brass construction resists corrosion and delivers the durability expected in commercial landscape and irrigation work. Max-flow port openings maintain water pressure through the connection point, avoiding the flow restriction common in lower-grade plastic fittings. Licensed irrigators, landscape contractors, and experienced irrigation technicians are the primary installers.
These adapters are suited for residential and commercial irrigation systems where multiple hoses, nozzles, or attachments need to interface with a single quick-connect setup. Common applications include converting spray heads, drip manifolds, hand-held nozzles, and oscillating sprinklers to quick-connect compatibility. The two-pack format allows simultaneous outfitting of multiple tools or hoses so any one of them can be swapped in without threading. Solid brass construction makes these adapters appropriate for year-round outdoor use in both low-pressure residential hose bibs and higher-demand commercial irrigation headers.
Designed as an OEM-style replacement and accessory fitting compatible with standard male quick-connect irrigation and hose systems.
Installation requires shutting off the water supply at the source before attaching or removing quick-connect fittings to avoid pressure surge. Thread the adapter onto the hose or nozzle end by hand until snug, then verify a secure seat before pressurizing the line. No specialized tools are required for standard hose-thread connections. Follow all applicable local plumbing and irrigation codes when integrating into permanent or semi-permanent irrigation systems.
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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