5-Pack 3/4 in. PEX-A Male Adapter Expansion Fittings NSF Lead Free Brass F1960

The 247Garden 3/4-inch PEX-A x 3/4-inch NPT Male Adapter, now available in a convenient 5-pack, is a heavy-duty plumbing fitting designed to seamlessly connect 3/4-inch PEX-A tubing to any standard 3/4-inch female threaded outlet. Constructed from lead-free, dezincification-resistant (DZR) brass, this adapter is NSF certified for potable water applications and engineered to meet ASTM F1960 standards for cold expansion PEX systems. Free shipping is included anywhere in the USA mainland.

Key Features

• Pack Size: 5-Pack

• Size: 3/4 in. PEX-A x 3/4 in. NPT Male Adapter

• Material: Lead-Free DZR Brass, NSF certified for potable water

• Standard: ASTM F1960 cold expansion installation method

• Connection Types:

  • PEX-A Side: Cold expansion using an expander tool and expansion rings/sleeves

  • Threaded Side: 3/4 in. male NPT thread for standard female-threaded outlets

• Flow Efficiency: Larger internal diameter delivers up to 25% greater flow compared to crimp or clamp fittings

• Durability: Corrosion and dezincification-resistant for long-lasting performance

• Operating Limits: Rated up to 200°F and 200 PSI

• Code Compliance: Meets or exceeds ASTM F1960, UPC, IPC, and cUPC standards

• Applications: Ideal for potable water distribution and hydronic heating systems

Installation Instructions

1. Threaded Side:

   • Wrap PTFE (Teflon) tape or apply thread sealant to the male NPT threads.

   • Hand-thread into the female-threaded fitting or outlet.

   • Tighten with a wrench without overtightening.

2. PEX-A Side:

   • Cut the PEX-A tubing squarely with a PEX cutter for a clean end.

   • Slide a 3/4-inch PEX expansion ring onto the pipe.

   • Use a PEX expansion tool to expand the tubing and ring evenly.

   • Insert the fitting barb fully into the expanded tubing.

   • Hold briefly while tubing contracts to form a watertight seal.

Tips for Optimal Performance

• Always use an ASTM F1960 cold-expansion tool; not compatible with crimp or clamp systems.

• Apply Teflon tape or approved thread sealant to NPT threads for leak-free connections.

• Avoid dry fitting; allow full contraction for a proper seal.

• Keep fittings clean and free of dirt, oil, or debris.

• Test under pressure before system operation.

• Avoid overtightening to prevent stress cracks or thread damage.

Why Choose This Adapter

This 5-pack adapter provides a reliable, code-compliant transition between PEX-A tubing and threaded plumbing connections. It simplifies installation, saves time compared to copper or CPVC alternatives, and delivers superior flow efficiency and long-term durability for both residential and commercial applications.