Parker 372HB-4-2N Barbed Male Branch Tee 1/4in Barb 1/8in Npt

Product Description

The PARKER 372HB-4-2N is a male branch tee fitting designed to split or branch a barbed tube line while providing a threaded male NPT connection point. Constructed from white nylon, this fitting accepts 1/4 inch barbed tubing on the branch and run ports and threads into a 1/8 inch NPT female port on the mating component. It is a standard choice for low-pressure pneumatic tubing assemblies, fluid transfer lines, and instrumentation plumbing in HVAC, refrigeration controls, and light industrial applications. Plumbers, HVAC technicians, and mechanical contractors install this fitting where a tee connection must interface with a threaded NPT port.

This fitting is suited for residential and light commercial systems where 1/4 inch OD flexible tubing is routed to branch off a main line and connect to a threaded manifold, sensor port, or control device. Its nylon construction makes it appropriate for water, air, and other compatible low-pressure media. The white color aids visual identification in multi-line tubing assemblies. Typical applications include condensate drain lines, pneumatic control tubing, and fluid sampling branches in panel or equipment enclosures.

Key Features

• Male branch tee configuration allows a single threaded NPT entry point with two barbed tube ports
• 1/4 inch barb size fits standard 1/4 inch ID flexible tubing
• 1/8 inch NPT male thread for direct connection to female-threaded ports or manifolds
• Nylon construction offers corrosion resistance and compatibility with water and air service
• Lightweight at 0.01 pounds — suitable for panel and enclosure plumbing where weight is a factor
• White color provides easy visual identification in multi-line installations

Compatibility

Designed as a standard OEM-style barbed male branch tee for use with 1/4 inch ID flexible tubing and 1/8 inch NPT female-threaded ports in low-pressure pneumatic and fluid transfer assemblies.

Installation Notes

Installation is performed by plumbers, HVAC technicians, or instrumentation mechanics working on low-pressure tubing systems. Shut off all fluid or air supply and depressurize the line before disassembling any fitting. Push tubing fully onto the barb and secure with appropriate clamps where required by the application or local mechanical codes. Do not over-torque the NPT threads into the receiving port; hand-tight plus the appropriate number of turns per ASME B1.20.1 practice is sufficient for nylon fittings, and thread sealant should be applied per the system manufacturer guidance.