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The PARKER 28-6-2 is a barbed tube male connector designed for low-pressure fluid and pneumatic line connections in plumbing, HVAC, and general industrial applications. The fitting accepts tubing with a 0.25 inch inside diameter and a 3/8 inch outside diameter, and threads into a mating port via a 1/8-27 male thread. Constructed from brass, this connector delivers corrosion resistance and reliable sealing performance in both liquid and air service. The barbed end grips the tubing mechanically, reducing the risk of pull-off under normal working pressures. This type of fitting is typically installed by licensed plumbers, HVAC technicians, or fluid-system assemblers working on small-bore tubing runs.
This connector is well suited for residential and light commercial applications where small-diameter flexible tubing must be joined to a threaded port. Common install scenarios include condensate drain lines, instrument air tubing, refrigeration accessories, and low-pressure water lines. The 1/8-27 thread size is a standard pipe thread found on a wide range of valves, manifolds, sensors, and equipment housings, making this fitting a frequently specified component in service and repair work.
Designed as an OEM-style replacement or service fitting for systems using 0.25 inch ID flexible tubing with a 1/8-27 threaded connection port.
Installation is typically performed by a licensed plumber, HVAC technician, or qualified fluid-system technician. Always depressurize and drain the line before removing or installing fittings. Apply thread sealant or PTFE tape to the male threads in accordance with the system fluid compatibility and local plumbing codes. Verify that the connected tubing outside diameter matches the barb specification before pressurizing the system.
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