Parker 172HD-4-2 Compression Male Branch Tee 1/8 in

Product Description

The PARKER 172HD-4-2 is a brass compression tube male branch tee designed for high-pressure fluid and gas line branching in trade plumbing and HVAC applications. It combines two compression end connections with one male NPT (MNPT) threaded outlet, allowing a single inline run to feed a branch connection without soldering or flaring. Rated to 2100 psi maximum working pressure, this fitting is built for demanding service environments. The all-brass construction provides corrosion resistance and durability in both wet and dry systems. Licensed plumbers and HVAC technicians are the primary installers of this type of compression branch fitting.

This fitting is suited for residential and light commercial systems where a compression tube run must supply a branch takeoff with a male NPT connection. Typical applications include refrigeration tubing, pneumatic control lines, fuel gas distribution, and hydraulic instrument lines. The 1/8 inch NPT thread size makes it a common choice for instrument and control line branch points where a compact, leak-resistant connection is required. The compression ends accept standard tubing without requiring specialized tooling beyond a tube cutter and wrenches.

Key Features

• Rated to 2100 psi maximum working pressure for high-pressure service
• Brass construction resists corrosion in fluid and gas applications
• Compression x Compression x MNPT end configuration enables inline branching with a threaded outlet
• 1/8 inch MPT thread standard for compatibility with standard NPT fittings
• No soldering or flaring required at compression ends

Compatibility

Designed as an OEM-style replacement or new-installation fitting for compression tube systems requiring a male branch tee with 1/8 inch MNPT outlet in brass construction.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with applicable local plumbing and mechanical codes. Shut off system pressure and depressurize all connected lines before disassembling or installing any compression fitting. Use a tube cutter to ensure a clean, square tube end before inserting into the compression connection, and hand-tighten the compression nut before applying wrench torque to avoid cross-threading. Do not overtighten the MNPT outlet connection; use appropriate thread sealant compatible with the system fluid or gas.