Parker 72338189 Push-to-connect Union 1/2 Inch Od

Product Description

The PARKER 72338189 is a push-to-connect union tube fitting designed for fast, tool-free connections in pneumatic and fluid handling systems. Constructed from bio-sourced Nylon 11, it offers a durable, lightweight alternative to metal fittings while maintaining a rated working pressure of 160 psi. The white body finish makes it easy to identify in installations. An EPDM O-ring provides the primary seal, suitable for water, air, and many mild chemical applications. This fitting is sized for 1/2 inch outside diameter tubing and is typically installed by plumbers, HVAC technicians, and industrial maintenance technicians in light commercial and residential systems.

This union fitting is suited for straight inline connections where two tube runs meet and a union-style disconnect may be needed for future serviceability. It is appropriate for use in compressed air distribution lines, water treatment systems, irrigation controls, and other low-to-medium pressure fluid or pneumatic circuits. The push-to-connect design reduces installation time compared to threaded or compression fittings, making it a practical choice in high-volume or time-sensitive service calls. Packaged in quantities of 5 per pack.

Key Features

• Push-to-connect design requires no tools, thread sealant, or compression hardware for assembly
• Bio-sourced Nylon 11 body offers chemical resistance and reduced environmental impact compared to petroleum-based polymers
• EPDM O-ring seal rated for water, air, and compatible mild chemical service
• 160 psi working pressure rating for light commercial and residential pneumatic or fluid systems
• Accepts 1/2 inch OD tubing — compatible with standard metric and imperial push-fit tubing of matching OD
• Packaged 5 units per pack for convenience on multi-connection jobs

Compatibility

Designed as an OEM-style push-to-connect union fitting for use with 1/2 inch outside diameter tubing in pneumatic, water, and compatible fluid handling systems.

Installation Notes

Depressurize and drain the system completely before removing or installing any push-to-connect fitting. Ensure tubing ends are cut square and free of burrs before inserting into the fitting body to achieve a proper seal. This fitting is installed by qualified plumbers, HVAC technicians, or industrial maintenance personnel following applicable codes such as IPC or OSHA compressed air guidelines. To release tubing, depress the collet ring evenly while pulling the tube straight out — do not twist or force at an angle.