Pro-source 2557518865PRO Push-to-connect Tube Fitting 1/8in

Product Description

The PRO-SOURCE 2557518865PRO is a push-to-connect tube fitting with a female NPT (FNPT) port, designed for inline connections in compressed air and water systems. Constructed from nickel-plated brass, it accepts 1/8 inch outside diameter tubing on each tube end and uses a 1/8 inch NPTF thread on the female port. It is rated for a maximum working pressure of 250 psi and handles temperatures from 0 degrees F to 160 degrees F, making it suitable for a wide range of light industrial and mechanical service applications. The Buna O-ring provides a reliable seal at the push-to-connect ports. Plumbers, pipefitters, and HVAC technicians install this fitting as part of small-bore pneumatic and fluid distribution circuits.

This fitting is used in residential and light commercial applications where 1/8 inch OD tubing must connect to a female NPT threaded port without requiring tools at the tube end. Typical installations include compressed air distribution lines, pneumatic control circuits, and small-diameter water service connections. The push-to-connect design allows quick tube insertion and secure retention, reducing assembly time in tight spaces. Compatible fluids include compressed air and water as specified by the manufacturer. Each package contains 5 fittings with a minimum order quantity of 1 package.

Key Features

• Push-to-connect tube ends accept 1/8 inch OD tubing without tools
• Nickel-plated brass construction for corrosion resistance in air and water service
• 1/8 inch NPTF female port for threaded pipe or component connections
• Rated to 250 psi maximum working pressure
• Operating temperature range: 0 degrees F to 160 degrees F
• Buna O-ring seals at push-to-connect ports
• Packaged in quantities of 5 per package

Compatibility

Designed for use with compressed air and water systems using 1/8 inch OD tubing and 1/8 inch female NPT threaded connections. Suitable for pneumatic control circuits and small-bore fluid lines where push-to-connect tube fittings with an FNPT port are required.

Installation Notes

Installation is typically performed by a licensed plumber, pipefitter, or HVAC technician. Depressurize and isolate the line completely before removing any existing fitting or inserting tubing into the push-to-connect ports. Ensure tubing is cut cleanly and squarely with no burrs before insertion to achieve a proper seal. Verify that the NPTF threaded connection is made with appropriate thread sealant per applicable plumbing or mechanical codes.