Parker PPB4BU4-MG Bulkhead Union 1/4 X 1/4 Inch Od

Product Description

The PARKER PPB4BU4-MG is a push-to-connect bulkhead union tube fitting designed for tube-to-tube connections through a panel or bulkhead wall. Constructed from black polypropylene, it accepts 1/4 inch OD tubing on both ends and is rated to 230 psi. The push-to-connect design allows for fast, tool-free tube insertion and secure sealing without the need for compression nuts or ferrules. This fitting is well-suited for plumbing technicians, HVAC service pros, and industrial maintenance personnel who need a reliable, leak-resistant inline connection routed through a panel or enclosure wall.

This bulkhead union is used in applications where tubing must pass cleanly through a partition, cabinet wall, or mounting panel. Typical install scenarios include water treatment systems, pneumatic control panels, refrigeration equipment, and light-duty fluid handling systems. The polypropylene body resists many common chemicals and moisture, making it appropriate for both wet and dry environments within its pressure rating. It is sold and packaged as a single fitting.

Key Features

• Push-to-connect design for fast, tool-free tube insertion and removal
• Accepts 1/4 inch OD tubing on both sides for a straight-through inline connection
• Rated to 230 psi operating pressure
• Black polypropylene construction offers chemical and moisture resistance
• Bulkhead-style body allows tube routing through panels and enclosure walls
• Compact footprint: 1.5 x 0.94 x 1.5 inches (H x W x L)

Compatibility

Designed for use with 1/4 inch OD tubing in push-to-connect tube-to-tube bulkhead applications across residential and light commercial plumbing, HVAC, and fluid handling systems.

Installation Notes

Installation is performed by a licensed plumber, HVAC technician, or qualified maintenance professional. Shut off and depressurize the fluid or pneumatic line completely before disconnecting or installing any fitting. Verify tubing is cut cleanly and squarely and is free of burrs before inserting into the push-to-connect port to ensure a proper seal. Consult applicable codes such as IPC or local plumbing authority requirements when installing in potable water or regulated systems.