Parker 172P-4-4 Compression Male Branch Tee 1/4-18

Product Description

The PARKER 172P-4-4 is a brass compression tube male branch tee designed for use in fluid and pneumatic plumbing systems where a branch connection is needed off a main compression tube run. The fitting features a Compression x Compression x MNPT end configuration, allowing two compression tube connections inline with a male NPT branch outlet. Thread size is 1/4-18 NPTF, and the fitting is rated for a maximum working pressure of 150 psi at temperatures up to 150 degrees F. Plumbers, HVAC technicians, and industrial piping professionals install this fitting type when splitting or branching a tube line to a threaded port.

This fitting is suited for residential and light commercial plumbing, refrigeration line sets, instrumentation tubing, and pneumatic control circuits where a reliable, leak-resistant branch connection is required. The brass body provides corrosion resistance in typical water, air, and oil service environments. The NPTF thread standard ensures a pressure-tight mechanical seal at the male threaded branch without relying solely on thread sealant.

Key Features

• Compression x Compression x MNPT end connections for inline tube-to-threaded-port branching
• 1/4-18 NPTF thread size for pressure-tight mechanical seal at the branch outlet
• 150 psi maximum working pressure rating
• Operating temperature range: 0 to 150 degrees F
• Brass body construction for corrosion resistance in water, air, and oil service
• Tee shape for creating a branch off an existing compression tube run

Compatibility

Designed as an OEM-style replacement or new-installation compression tee fitting for systems using 1/4-18 NPTF threaded ports with compression tube connections in plumbing, HVAC, and pneumatic applications.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician following applicable IPC or IFGC guidelines. Shut off system pressure and depressurize the line before disassembly or fitting installation. Hand-tighten the compression nuts before applying a final quarter to half turn with a wrench to avoid over-tightening and deforming the ferrule. Apply appropriate thread sealant or PTFE tape to the MNPT branch threads per system requirements.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.