Parker EZ-251-6PL Push-lok Hose Barb Coupler Steel

Product Description

The PARKER EZ-251-6PL is a Push-Lok hose barb coupler designed for industrial pneumatic and fluid transfer applications. Built from steel, this coupler features a 1/4 inch body diameter and accepts a 3/8 inch hose ID, making it a compact, reliable fitting for connecting flexible hose to pneumatic lines. The Push-Lok design allows for quick, tool-free hose attachment — simply push the hose onto the barb and the connection is secured. HVAC technicians, pipefitters, and industrial mechanics use this type of fitting when assembling or servicing compressed air lines, pneumatic control circuits, and general-purpose fluid conveyance systems.

This coupler is suited for industrial environments where steel construction is required for durability and pressure resistance. Typical applications include compressed air distribution, pneumatic tool connections, and light fluid transfer lines in commercial and industrial facilities. The 1/4 inch coupler size is a common standard in pneumatic systems, and the 3/8 inch hose ID compatibility covers a widely used hose dimension in trade applications. Each unit is sold individually with a package quantity of one.

Key Features

• Steel construction for durability in industrial environments
• 1/4 inch body diameter — standard coupler size for pneumatic applications
• Accepts 3/8 inch hose ID for secure hose barb connection
• Push-Lok design allows fast, tool-free hose installation
• Compact form factor suitable for tight installation spaces

Compatibility

Designed as an OEM-style replacement or service fitting for industrial pneumatic hose assemblies requiring a 1/4 inch steel hose barb coupler with 3/8 inch hose ID compatibility.

Installation Notes

Installation is typically performed by pipefitters, HVAC mechanics, or industrial maintenance technicians. Depressurize and lock out the pneumatic system before removing or installing any fittings. Ensure the hose end is cut cleanly and squarely before seating it onto the barb to achieve a proper Push-Lok seal. Verify that the hose ID and barb size match before final assembly to prevent leaks or fitting failure.