Parker A4TEU4-MG Push-to-connect Plug 1/4 Inch Od

Product Description

The PARKER A4TEU4-MG is a push-to-connect tube fitting plug designed to seal open tubing ends quickly and without tools. Made from polyoxymethylene (POM), a rigid acetal-based thermoplastic, this plug offers a rated working pressure of 300 psi and handles the demands of pneumatic and fluid-transfer lines in light industrial and HVAC applications. The push-to-connect mechanism allows a technician to terminate a 1/4 inch OD tube run in seconds by simply inserting the tube until it seats. It is installed by HVAC technicians, plumbers, and mechanical contractors working with compressed air lines, water lines, and instrument tubing.

This plug fits 1/4 inch OD tubing and is suited for residential and light commercial installations where a quick, removable tube termination is needed. Typical use cases include capping unused ports on pneumatic control systems, sealing open tube ends during phased installations, or isolating sections of a fluid-distribution manifold. The tan POM body resists moisture and many common chemicals encountered in HVAC and plumbing service environments, making it a practical choice for both permanent and temporary terminations.

Key Features

• Push-to-connect design allows tool-free installation and removal
• 300 psi rated working pressure for pneumatic and fluid-transfer service
• Polyoxymethylene (POM) body offers chemical resistance and dimensional stability
• Fits 1/4 inch OD tubing for a secure, leak-resistant seal
• Tan color for quick visual identification on mixed-fitting systems
• Compact, lightweight construction at 0.01 pounds

Compatibility

Designed as an OEM-style push-to-connect plug for use with 1/4 inch OD tubing in pneumatic control, light-duty compressed air, and fluid-transfer line applications.

Installation Notes

Shut off and depressurize the line before installing or removing this plug. Ensure the tube end is cut cleanly and squarely with a tube cutter for a proper seal; deburr the end if necessary. Push the tube firmly into the fitting until it bottoms out in the collet. To release, depress the collet ring and withdraw the tube. This fitting is intended for use by qualified HVAC, plumbing, or mechanical trades personnel in accordance with applicable local codes.