Parker PPB6BU6-MG Bulkhead Union Fitting 3/8 in Od 150 Psi

Product Description

The PARKER PPB6BU6-MG is a push-to-connect bulkhead union tube fitting designed for routing tubing through a panel, wall, or enclosure without threading or soldering. Constructed from polypropylene, this fitting accepts 3/8 inch OD tubing on both sides and holds up to 150 psi working pressure. Installation requires no tools for tube insertion — tubing seats and locks in a single push. The fitting is suited for plumbing, pneumatic, and fluid transfer applications where a clean panel penetration is needed. Plumbers, HVAC technicians, and equipment installers work with this type of fitting in both residential and light commercial settings.

This bulkhead union is intended for use with 3/8 inch OD tubing in applications where a fluid or air line must pass through a bulkhead, panel, or cabinet wall. Typical installations include equipment enclosures, water treatment systems, RO systems, condensate lines, and pneumatic control panels. The polypropylene body resists common chemicals and moisture, making it a practical choice for wet or humid environments. It is sold individually and is compatible with standard push-to-connect tubing in the specified OD size.

Key Features

• Push-to-connect design — no tools required for tube insertion
• Bulkhead union style allows tubing to pass cleanly through a panel or wall
• Rated to 150 psi working pressure
• Polypropylene body offers chemical and moisture resistance
• Accepts 3/8 inch OD tubing on both ends
• Compact footprint: 1.75 inches high, 1.06 inches wide, 1.75 inches long

Compatibility

Designed for use with standard 3/8 inch OD push-to-connect tubing. Suitable as a replacement or new-install bulkhead union fitting in fluid transfer, pneumatic, or water treatment systems requiring panel penetration.

Installation Notes

This fitting is installed by a plumber, HVAC technician, or equipment technician. Before installation, shut off fluid or air supply and relieve system pressure. Cut tubing squarely and ensure the cut end is free of burrs before inserting into the fitting. To disconnect, depress the collet ring and pull the tubing out — do not force or twist the tubing while under pressure.