John Guest Polypropylene Union Connector, 1/4-Inch x 1/4-Inch - PP0408W-US

John Guest Polypropylene Union Connector, 1/4-Inch x 1/4-Inch - PP0408W-US

Restore a secure service connection with this universal/spec-match John Guest Polypropylene Union Connector, 1/4-Inch x 1/4-Inch. This part joins, adapts, caps, or controls the specified water, gas, refrigerant, or tubing connection for the application.

PP0408W-US is a universal/spec-match John Guest item selected by its verified size, rating, connection, or application rather than appearance alone. Match the service requirements before ordering.

Is it time to replace?

• Common Symptoms: Connection leaks, fitting is damaged, threads or sealing surfaces are worn, or the installation requires the specified adapter/valve configuration.
• Visible/Sensory Cues: Cracked body, damaged threads, corrosion, leakage, distorted flare/compression surface, or a valve that will not shut off correctly.

Pro Tip: Match every connection size and type exactly (MIP/FIP, flare, compression, push-fit, tubing OD, or service-port style) and use the sealing method specified for that connection.

Technical Specifications