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The CERROBRASS 309-88 is a barbed push-on hose female connector machined from brass for durable, corrosion-resistant performance in fluid transfer applications. It features a 3/4-inch UNF female thread on one end and a 1/2-inch barb on the hose end, with a 1/2-inch inside diameter and 1/2-inch outside diameter. Rated to 300 psi maximum working pressure, this fitting handles operating temperatures from -40 degrees F to 212 degrees F, making it suitable for a wide range of liquid and low-pressure pneumatic service. Plumbers, HVAC technicians, and mechanical contractors install this type of connector where a secure push-on hose attachment to a threaded port is required.
This fitting is suited for residential and light commercial plumbing, HVAC, and fluid-handling systems where a barbed hose connection to a UNF-threaded female port is needed. The push-on barb design secures standard hose assemblies without additional tools, and the brass construction is compatible with water, oils, and many common hydraulic fluids. It is typically installed in tight-space applications where a compact, reliable hose-to-thread transition is required.
Designed as an OEM-style replacement or new-installation fitting for systems requiring a 3/4-inch UNF female threaded port with a 1/2-inch push-on barb hose connection.
Installation is typically performed by licensed plumbers or HVAC technicians following applicable IPC or IFGC guidelines. Shut off all fluid supply and depressurize the line before removing or installing any hose fittings. Inspect the mating threaded port for damage or debris before threading the connector; do not overtighten, as brass fittings can be damaged by excessive torque. Ensure the hose is fully seated over the barb and secured with an appropriate clamp for the rated working pressure.
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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