3/4 x 1/2 in. PEX-A Reducing Coupling for Cold Expansion PEX Plumbing ASTM F1960 NSF Lead Free Brass Fitting

The 247Garden 3/4 x 1/2 inch PEX-A Reducing Coupling is designed for secure and reliable transitions in cold expansion PEX plumbing systems. Manufactured from premium lead-free DZR brass, this fitting meets NSF/ANSI standards for potable water use and is fully compliant with ASTM F1960 specifications. Built to handle both hot and cold water applications, this reducing coupling is corrosion-resistant, highly durable, and approved for residential and commercial plumbing installations.

This coupling allows you to reduce from 3/4 inch PEX-A pipe to 1/2 inch PEX-A pipe while maintaining a permanent, leak-resistant seal once expanded and compressed with the proper PEX expansion tool. With a solid one-piece construction, this fitting is engineered to deliver long-lasting performance in hydronic heating, water distribution, and remodeling projects.

Key Features

• Size: 3/4 in. x 1/2 in. reducing coupling

• Material: Lead-free DZR brass (NSF certified for potable water)

• Standards: ASTM F1960 compliant for PEX-A cold expansion systems

• Applications: Hot and cold potable water, radiant floor heating, hydronic heating, plumbing remodels, new installations

• Performance: Corrosion-resistant, durable, permanent connection for long service life

Installation Tips & Tricks for PEX-A Expansion Fittings

1. Cut Clean and Square – Always use a PEX tubing cutter to ensure the pipe end is perfectly square. Avoid angled cuts as they can lead to poor sealing.

2. Inspect the Expansion Ring – Slide the PEX-A expansion ring over the pipe, making sure it is flush and properly aligned with the pipe end.

3. Expand Smoothly – Use a certified PEX expansion tool. Rotate slightly between expansions to ensure uniform stretching of the pipe and ring.

4. Insert Immediately – After the final expansion, insert the reducing coupling into the pipe quickly. The pipe will naturally shrink back down, gripping the fitting tightly.

5. Allow for Recovery – Give the joint a few minutes to fully contract before applying pressure. In cold weather, allow extra time for the PEX to recover its shape.

6. Support Your Lines – Properly secure PEX lines with hangers or supports to prevent unnecessary stress on fittings and connections.

With proper installation, the 247Garden 3/4 x 1/2 inch PEX-A Reducing Coupling provides a worry-free, permanent connection that outlasts many traditional plumbing methods.