Eff 103346-lf Brass Pex X Female Sweat Adapter 1/2 in Pex X 3/4 in Female Sweat

Product Description

The EFF 103346-lf is a brass adapter fitting designed to connect 1/2 inch PEX tubing to a 3/4 inch female sweat copper connection. This fitting is a practical solution for plumbers and pipefitters who need to transition between PEX and copper piping systems in residential and light commercial plumbing installations. The adapter bridges two of the most common pipe connection types used in modern plumbing, making it an essential component for new construction, renovation, and repair work.

PEX tubing has become a standard choice in modern plumbing due to its flexibility, freeze resistance, and ease of installation. When a system requires a transition from PEX to copper, a reliable adapter fitting like the EFF 103346-lf is necessary to maintain a secure, leak-free connection. The female sweat end accepts a 3/4 inch copper pipe, which is soldered in place using standard copper sweat techniques. The 1/2 inch PEX end is compatible with standard PEX crimp or clamp ring fittings, making this adapter versatile for different installation methods used by plumbing professionals.

Constructed entirely from lead-free brass, the EFF 103346-lf meets current plumbing code requirements for potable water systems. Lead-free brass fittings are required by law in many jurisdictions for any fitting used in drinking water applications. The brass construction provides excellent corrosion resistance and long service life in both hot and cold water lines. This fitting is well-suited for use in water supply systems, in-floor radiant heating connections, and other PEX-to-copper transition points throughout a plumbing system.

• Transitions 1/2 inch PEX tubing to a 3/4 inch female sweat copper connection for reliable mixed-system plumbing
• Lead-free brass construction meets potable water code requirements and provides long-lasting corrosion resistance
• Compatible with standard PEX crimp and clamp ring installation tools used by professional plumbers

Product Highlights

The EFF 103346-lf brass adapter delivers a dependable PEX-to-copper transition in a lead-free fitting built for potable water service. It is a straightforward, code-compliant solution for plumbing professionals working on PEX and copper hybrid systems.

Product Information

Standard Information

• Brand: EFF
• Manufacturer Part Number: 103346-lf

Technical Specifications

• Fitting Type: Adapter
• Connection Size 1: 1/2 inches (PEX)
• Connection Type 1: PEX
• Connection Size 2: 3/4 inches (Female Sweat)
• Connection Type 2: Female Sweat
• Material Construction: Brass
• Material: Brass