Pro-source 2558551665PRO Push-to-connect Tube Fitting 5/16in

Product Description

The PRO-SOURCE 2558551665PRO is a push-to-connect tube-to-tube fitting designed for fast, tool-free connections in plumbing and pneumatic systems. Constructed from nickel-plated brass with a Buna-N O-ring, it accepts 5/16-inch OD tubing and is rated for up to 250 psi working pressure. The fitting creates a secure, leak-resistant seal without solder, compression ferrules, or threading. Plumbers, pipefitters, and HVAC technicians use these fittings where quick assembly or field repair is a priority. Each package contains 5 fittings.

This fitting is suited for residential and light commercial applications involving compressed air lines and water distribution. It works with standard 5/16-inch OD tubing in systems where push-to-connect technology is specified. Common install scenarios include control line hookups, pneumatic instrumentation runs, and potable or process water lines where the 250 psi pressure rating and Buna-N O-ring material are appropriate for the service conditions.

Key Features

• Push-to-connect design allows tool-free tube insertion and secure retention
• Nickel-plated brass body provides corrosion resistance for air and water service
• Buna-N O-ring ensures a reliable seal across typical operating temperatures
• Rated to 250 psi working pressure
• Tube-to-tube configuration for straight inline connections
• Packaged in quantities of 5 fittings per pack

Compatibility

Designed for use with 5/16-inch OD tubing in compressed air and water service lines. Verify tubing material and system pressure rating before installation to confirm suitability.

Installation Notes

Installation is performed by plumbers, pipefitters, or HVAC technicians. Depressurize and drain the line completely before removing or installing any fitting. Ensure the tubing end is cut square and free of burrs before inserting into the fitting to achieve a proper seal. Follow all applicable codes, including IPC and local plumbing ordinances, for the intended service fluid and pressure rating.