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The PARKER PP6UC6 is a push-to-connect union tube fitting designed to join two tube runs without tools or threaded connections. It accepts 3/8-inch OD tubing on both ends and creates a secure, leak-resistant connection through a simple push-in action. The body is molded from polypropylene, making it lightweight and compatible with a wide range of fluid media. Rated at 150 psi, this fitting suits moderate-pressure plumbing, irrigation, and fluid-transfer applications. Licensed plumbers, HVAC technicians, and irrigation installers commonly use push-to-connect fittings where quick assembly or serviceability is a priority.
This union fitting is suited for residential and light commercial plumbing, water treatment, pool and spa circulation lines, and low-pressure pneumatic or fluid systems where polypropylene is an approved material. Its tube-to-tube union configuration allows inline connection or repair of existing tubing runs without cutting threads or applying solvents. The tan polypropylene construction offers resistance to many common chemicals and moisture.
Designed as an OEM-style push-to-connect replacement or new-installation union fitting for 3/8-inch OD tubing in plumbing, irrigation, water treatment, and similar fluid-handling systems where polypropylene fittings are specified.
Shut off water supply and relieve system pressure before removing or installing any inline fitting. Cut tubing squarely and deburr the end before insertion to ensure a proper seal and full engagement with the collet. Polypropylene fittings should not be used with tubing types or fluid media outside the manufacturer's listed compatibility range. Installation must comply with applicable plumbing codes, including IPC requirements for fitting material approvals in potable or non-potable systems.
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