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The PRO-SOURCE 2555638365PRO is a push-to-connect tube-to-universal-thread fitting designed for quick, tool-free tube connections in fluid and pneumatic systems. Constructed from nickel-plated brass, it accepts 3/8 inch outside diameter tubing and features a 3/8 inch universal thread on the opposite end. The fitting is rated to 250 psi maximum working pressure and handles temperatures from 0 degrees F to 160 degrees F. The Buna o-ring provides a reliable seal across a wide range of media. Sold in packages of five, this fitting suits installations where multiple connection points are needed in a single service call.
This fitting is used in residential and light commercial plumbing, HVAC, and pneumatic control line applications where push-to-connect convenience is required. It is appropriate for copper, nylon, or polyethylene tubing with a 3/8 inch OD paired with a universal-threaded port. Plumbers, HVAC technicians, and fluid-system mechanics commonly specify this type of fitting when retrofitting or repairing control lines, condensate drain accessories, or low-pressure pneumatic circuits.
Designed as an OEM-style replacement or service fitting for systems using 3/8 inch OD tubing terminated to a universal-thread port in low-to-medium-pressure fluid or pneumatic circuits.
Installation is typically performed by licensed plumbers or HVAC technicians following applicable IPC or IFGC guidelines. Before servicing any line, shut off the fluid or air supply and relieve system pressure completely. Ensure the tube end is cut cleanly and squarely, free of burrs, before inserting into the push-to-connect end. Verify the universal thread end is fully engaged and that the Buna o-ring is properly seated before returning the system to 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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