Parker 225-6-6 Barbed Tube Union Elbow 0.25 in Id

Product Description

The PARKER 225-6-6 is a barbed tube union elbow fitting designed to join two sections of flexible tubing at a 90-degree angle. Constructed from brass, it delivers reliable corrosion resistance and durability in fluid-handling systems. The fitting accepts tubing with an inside diameter of 0.25 inches and an outside diameter of 0.375 inches. The barbed ends provide a secure mechanical grip on the tubing, reducing the risk of pullout under normal system pressure. This type of fitting is commonly installed by plumbers, HVAC technicians, and fluid-system mechanics working with pneumatic, hydraulic, or general-purpose tubing lines.

This union elbow fitting is suited for residential and light commercial applications where flexible tubing must be routed around a corner or transition point. Typical install scenarios include pneumatic control lines, coolant circuits, low-pressure fluid distribution, and equipment plumbing where a rigid threaded fitting is not practical. The barbed union design allows for in-line connection without requiring pipe threads or additional fittings on either end.

Key Features

• Brass construction for corrosion resistance and long service life
• 0.25 inch inside diameter barbed ends for secure tubing grip
• Union elbow design joins two tubing runs at a 90-degree angle
• No pipe threads required — barb-and-clamp installation
• Compact form factor suited for tight routing spaces

Compatibility

Designed as an OEM-style replacement or new-installation barbed union elbow for flexible tubing with a 0.25 inch inside diameter and 0.375 inch outside diameter in low-pressure pneumatic and fluid-handling systems.

Installation Notes

Installation is typically performed by a licensed plumber or qualified HVAC or mechanical technician. Depressurize and drain the line fully before disconnecting or installing any fitting. Insert the tubing firmly over each barbed end and secure with an appropriate hose clamp to prevent leakage. Verify that tubing material and system pressure ratings are compatible with the fitting before placing the system back in service.