Parker PP4EU4 Push-to-connect Union Fitting 1/4 in Od

Product Description

The PARKER PP4EU4 is a push-to-connect union tube fitting designed to join two lengths of tubing with a tool-free, hand-insertable connection. Constructed from polypropylene in a tan color, this fitting handles pressures up to 150 psi and accepts tubing with a 1/4 inch outside diameter on both ends. It is sized for residential and light commercial fluid-handling lines where a quick, reliable tube-to-tube union is needed. Plumbers, HVAC technicians, and general trades installers use this fitting to make fast inline connections without soldering, threading, or compression tools.

This fitting is suited for low-pressure tubing runs in plumbing, HVAC condensate drain lines, refrigeration equipment drainage, and similar fluid-conveyance applications. The polypropylene body offers resistance to many common chemicals and moisture, making it a practical choice for both wet and dry indoor environments. It ships and sells as a single unit, allowing technicians to stock exactly the quantity needed for a service call or installation job.

Key Features

• Tool-free push-to-connect design — no compression sleeves, solder, or threading required
• Polypropylene construction provides chemical and moisture resistance
• Rated to 150 psi for use in low-pressure fluid-handling systems
• Accepts 1/4 inch OD tubing on both ports for inline union connections
• Tan color for quick visual identification in multi-line installations
• Sold as a single unit for flexible job-site quantity management

Compatibility

Designed as an OEM-style push-to-connect replacement or new-install union fitting for tubing systems using 1/4 inch outside diameter tubing in low-pressure plumbing and HVAC applications.

Installation Notes

Installation is performed by cutting tubing to a clean, square end and inserting each tube end fully into the fitting until it seats against the internal stop. Shut off and depressurize the line before disconnecting or installing any fitting. Verify that the tubing OD matches the fitting size before inserting, as undersized or oversized tubing will not seal correctly. This fitting type is typically installed by licensed plumbers or HVAC technicians in compliance with applicable local plumbing codes.