Parker 26-6-4 Barbed Tube Female Connector 1/4-18

Product Description

The PARKER 26-6-4 is a barbed tube female connector designed for secure, leak-resistant tubing connections in fluid and pneumatic systems. Constructed from brass, this fitting accepts a 0.25 inch tube inside diameter and threads into a 1/4-18 female port. The multiple-barb design grips the tubing firmly to resist pullout under pressure and vibration. Licensed plumbers, HVAC technicians, and industrial maintenance professionals install this fitting type in low-pressure fluid transfer, pneumatic control lines, and general-purpose tubing assemblies where a threaded female port meets flexible tubing.

This connector is suited for residential and light commercial applications involving flexible tubing runs connected to threaded female ports. Typical installations include control line plumbing, instrumentation tubing, and low-pressure fluid distribution where a reliable push-and-grip barbed connection is required. The brass construction makes it compatible with water, air, and many common non-corrosive fluids encountered in HVAC, plumbing, and light industrial service work.

Key Features

• Multiple-barb design provides enhanced grip and pullout resistance on flexible tubing
• Brass construction for corrosion resistance in water, air, and mild fluid service
• 0.25 inch tube inside diameter for use with standard quarter-inch ID flexible tubing
• 1/4-18 thread size for direct connection to matching female-threaded ports
• Compact form factor suitable for tight installation spaces

Compatibility

Designed as an OEM-style replacement and new-installation fitting for systems using 0.25 inch inside diameter flexible tubing with a 1/4-18 threaded female port connection.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or instrumentation professional familiar with applicable codes including IPC and IFGC where relevant. Shut off all fluid supply and relieve system pressure completely before disassembling or installing any fitting. Push tubing fully onto the barbs past all ridges to ensure a secure, leak-free connection, and verify joint integrity before returning the system to service. Do not overtighten the threaded connection; use thread sealant appropriate to the service fluid.