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The PRO-SOURCE 2555704765PRO is a push-to-connect tube fitting with a universal thread connection, designed for fast, tool-free tube insertion in compressed air and water systems. Constructed from nickel-plated brass, it offers corrosion resistance suitable for both pneumatic and fluid service lines. The fitting is rated to 250 psi and connects tubing with a 4.00 mm outside diameter to a universal thread port. Plumbers, pipefitters, and HVAC technicians use this type of fitting when speed of connection matters and where disassembly may be needed during service. The nickel plating adds durability in environments with moisture exposure.
This fitting is suited for residential and light commercial applications involving compressed air distribution lines, water supply connections, and similar low-to-medium pressure fluid or pneumatic circuits. It is packaged in a quantity of 5 per pack, making it practical for technicians who need multiple connections on a single job. Typical installations include equipment hookups, manifold ports, and branch line connections where push-to-connect fittings simplify assembly without sacrificing rated pressure integrity.
Designed for use with compressed air and water systems accepting universal thread connections and 4.00 mm outside diameter tubing.
Installation is performed by plumbers, pipefitters, or HVAC technicians working on compressed air or water lines. Before installing or removing the fitting, depressurize and isolate the line completely. Confirm tubing outside diameter matches the fitting specification and that the tube end is cut cleanly and squarely to ensure full O-ring seating. Follow applicable codes such as IPC or relevant pneumatic system standards when integrating into pressurized service lines.
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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