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The VALUE COLLECTION PC45GW-555 is a push-to-connect union tube fitting designed to join two lengths of tubing quickly and without tools. Made from polyoxymethylene (POM), a rigid engineering thermoplastic, this fitting provides a secure, leak-resistant connection rated to 150 psi. It accepts tubing with a 5/16 inch outside diameter on each end. The union configuration allows inline connection or disconnection of tubing runs, making it well suited for plumbing, pneumatic, and fluid-transfer applications where fast assembly and reliability are required.
This fitting is used in light industrial, commercial, and residential applications where push-to-connect convenience reduces installation time. Typical uses include water purification systems, beverage dispensing lines, pneumatic control circuits, and HVAC condensate or sensing lines. The POM construction resists moisture, mild chemicals, and wear, making it appropriate for both wet and dry service environments. Licensed plumbers, pipefitters, and HVAC technicians commonly install this type of fitting.
Designed as a standard push-to-connect union for 5/16 inch OD tubing used in residential and light commercial fluid-transfer or pneumatic systems.
Installation requires no special tools — cut tubing square, deburr the end, and push firmly into the fitting until the tubing seats against the internal stop. Always depressurize and drain the line before disconnecting or replacing this fitting. Verify that tubing material and system fluid are compatible with POM before installation. Follow applicable local plumbing or mechanical codes for the service type.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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