Pro-source 2556004465PRO Push-to-connect Tube Fitting 5-pack

Product Description

The PRO-SOURCE 2556004465PRO is a push-to-connect tube-to-tube fitting constructed from nickel-plated brass with a Buna-N O-ring seal. Rated to 250 psi, it accepts tubes by outside diameter and creates a secure, tool-free connection without ferrules or compression nuts. The fitting is sold in a pack of five and is suited for plumbing technicians, HVAC service techs, and industrial maintenance crews working on compressed air lines, water distribution circuits, or pneumatic control tubing. The nickel plating resists corrosion in damp mechanical rooms and equipment cabinets.

This fitting is designed for tube-to-tube inline connections on compressed air and water systems where fast, reliable assembly is required. It is a common choice for HVAC equipment control lines, pneumatic actuator circuits, and light commercial or residential plumbing applications. The 4.00 mm tube outside diameter spec makes it compatible with small-bore tubing used in controls and instrumentation runs. Each pack contains five fittings, providing enough quantity for multi-point installations or service stock.

Key Features

• Push-to-connect design allows tool-free tube insertion and secure retention without additional fittings or ferrules
• Nickel-plated brass construction resists corrosion and withstands pressures up to 250 psi
• Buna-N O-ring seals provide reliable performance on both compressed air and water service
• Accepts 4.00 mm tube outside diameter for small-bore control and pneumatic tubing
• Pack of 5 supports multi-point jobs or replenishment of service inventory

Compatibility

Designed for use with compressed air and water service lines using 4.00 mm outside diameter tubing in push-to-connect tube-to-tube configurations.

Installation Notes

Depressurize and isolate the line before removing any existing fitting or inserting this connector. Ensure tube ends are cut square, deburred, and free of contaminants before insertion to achieve a proper seal. This fitting type is typically installed by licensed plumbers, HVAC technicians, or qualified maintenance personnel following applicable IPC or IFGC guidelines for the fluid being conveyed. Do not exceed the rated working pressure of 250 psi.