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The PRO-SOURCE 2556418465PRO is a push-to-connect tube-to-universal-thread fitting designed for fast, tool-free tube connections in compressed air and water systems. Constructed from nickel-plated brass, this fitting accepts 1/8-inch OD tubing and connects to a 1/4-inch universal thread port. It is rated to 250 psi, making it suitable for typical shop air and light fluid service applications. The push-to-connect design allows a technician to insert tubing and achieve a secure seal without compression ferrules or additional tooling. This package contains 5 fittings. HVAC technicians, plumbers, and refrigeration mechanics regularly use push-to-connect fittings for control line, instrument air, and low-pressure water connections.
This fitting is used in residential and light commercial applications where quick-connect plumbing is preferred over traditional compression or flare connections. Common install scenarios include pneumatic control lines, instrument tubing runs, air compressor distribution, and low-pressure water service lines. The Buna-N O-ring provides the primary seal between the fitting body and the tubing OD. Sold in a pack of 5, this SKU suits both single repairs and small-batch installations.
Designed for use with compressed air and water systems requiring 1/8-inch OD tubing and a 1/4-inch universal thread port connection. Suitable as an OEM-style replacement or new-installation fitting in pneumatic control and low-pressure water plumbing assemblies.
Installation should be performed by a qualified plumber, HVAC technician, or pipefitter. Depressurize and isolate the system completely before removing existing fittings or inserting new ones. Ensure tubing OD is clean, cut square, and free of burrs before inserting into the push-to-connect port. Verify thread engagement meets applicable IPC or local plumbing code requirements for the service type.
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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