Parker A6WY4-MG Union Y Tube Fitting 3/8 X 1/4 in Od

Product Description

The PARKER A6WY4-MG is a push-to-connect union Y tube fitting designed for tube-to-tube connections in compressed air, pneumatic, and fluid distribution systems. Constructed from polyoxymethylene (POM), a rigid engineering-grade thermoplastic, this fitting accepts 3/8-inch and 1/4-inch OD tubing and is rated to 300 psi. The push-to-connect design allows fast, tool-free tube insertion with a secure, leak-resistant grip. It is installed by HVAC technicians, plumbers, and pneumatic system technicians in both residential and light commercial applications where reliable, compact tube junctions are required.

This union Y fitting is suited for pneumatic control lines, HVAC condensate or air distribution tubing, and general-purpose fluid handling circuits. The Y configuration splits or joins flow at a branch point without requiring additional adapters or fittings. Its compact footprint makes it practical in tight equipment enclosures, control panels, and inline tubing runs where space is limited. The gray POM body resists moisture and common chemicals encountered in HVAC and plumbing environments.

Key Features

• Push-to-connect design allows tool-free tube insertion and removal
• Rated to 300 psi for use in pneumatic and fluid distribution lines
• Polyoxymethylene (POM) construction provides rigidity and chemical resistance
• Accepts 3/8-inch and 1/4-inch OD tubing in a single union Y configuration
• Compact body measuring 1 inch in length for use in confined spaces

Compatibility

Designed as an OEM-style replacement or new-installation push-to-connect union Y fitting for pneumatic and fluid tubing systems using 3/8-inch and 1/4-inch OD tube.

Installation Notes

Installation is performed by qualified HVAC technicians, plumbers, or pneumatic system technicians. Before servicing any line, depressurize the system completely and verify pressure has dropped to zero before inserting or removing tubing. Ensure tubing ends are cut cleanly and squarely with a tubing cutter to achieve a proper seal in the push-to-connect collet. Do not exceed the 300 psi pressure rating of this fitting.