Eff 103164-lf 3/4 X 1/2 Inch No Lead Brass Pex Reducing Coupling

Product Description

The EFF 103164-lf is a no lead brass PEX reducing coupling designed for connecting two PEX lines of different sizes. It joins a 3/4 inch PEX line to a 1/2 inch PEX line in a single fitting. This type of reducing coupling is a standard part of residential and commercial plumbing systems, especially in PEX-based water distribution layouts. Plumbers and pipefitters use reducing couplings when a supply line needs to step down in diameter to feed a fixture, branch line, or appliance connection. The EFF 103164-lf is manufactured by Eastern Foundry and Fitting and built from solid brass, which provides reliable corrosion resistance and long service life in both hot and cold water applications. Brass fittings are a preferred choice for professional plumbers because they hold up well under pressure, resist dezincification, and create secure, leak-free connections. The no lead construction meets current regulatory requirements for potable water systems, making this fitting suitable for drinking water lines where lead-free compliance is required. PEX plumbing has become the standard in new construction and remodel work because of its flexibility, ease of installation, and resistance to freezing. Reducing couplings like this one allow plumbers to transition between pipe sizes without additional adapters or extra fittings in the line. This fitting uses a PEX to PEX connection type on both ends, so it is compatible with standard PEX installation tools and crimp or clamp ring systems. It is a straightforward, dependable fitting for rough-in plumbing, manifold branch runs, and fixture supply lines. Also referenced under part numbers U3164-LF, 5423-003, EPRC3412-NL, P7478, and PXCPR0403LF.

• Reduces 3/4 inch PEX to 1/2 inch PEX in a single fitting for clean, efficient line transitions
• No lead brass construction meets potable water lead-free compliance standards
• Compatible with standard PEX crimp and clamp ring installation methods

Product Highlights

The EFF 103164-lf is a no lead brass PEX reducing coupling that connects 3/4 inch PEX to 1/2 inch PEX. It is built for potable water systems and meets lead-free requirements for professional plumbing installations.

Product Information

Standard Information

• Brand: EFF
• Manufacturer Part Number: 103164-lf

Technical Specifications

• Fitting Type: Coupling
• Connection Size 1: 3/4 inches
• Connection Type 1: PEX
• Connection Size 2: 1/2 inches
• Connection Type 2: PEX
• Connection Type: PEX to PEX
• Material Construction: Brass
• Lead Free: Yes