Eff 109664-lf Brass Reducing Tee 3/4 in X 3/4 in X 1/2 in Pex Fitting

Product Description

The EFF 109664-lf is a brass reducing tee fitting designed for PEX piping systems used in residential and commercial plumbing applications. This fitting connects two 3/4 inch PEX lines on the run while reducing to a 1/2 inch PEX branch, making it a practical solution for distributing water flow to fixtures, appliances, or branch lines from a main supply run. Plumbers and pipefitters rely on reducing tees like this one to split or redirect flow without requiring additional adapters or transitions. The all-brass construction provides strong resistance to corrosion, dezincification, and the wear that comes with years of pressurized water service. Brass fittings are a long-standing standard in potable water systems because the material holds up well against both hot and cold water, resists scale buildup, and maintains a reliable seal over time. The 109664-lf is compatible with standard PEX crimp or clamp installation methods, making it straightforward to install with common tools already in a plumber's kit. PEX piping systems have become the preferred choice for new construction and remodel work alike due to their flexibility, freeze resistance, and ease of routing through walls and joists. A reducing tee is one of the most frequently needed fittings in any PEX distribution system, particularly when running a main trunk line and branching off to individual fixtures such as sinks, toilets, or shower valves. The 3/4 inch by 3/4 inch by 1/2 inch configuration is one of the most common sizes stocked by trade professionals. This fitting is lead-free compliant, suitable for use in potable water systems where low-lead standards apply.

• Brass construction offers corrosion resistance and long service life in potable water applications
• Reduces from 3/4 inch PEX run to 1/2 inch PEX branch for flexible distribution layouts
• Compatible with standard PEX crimp and clamp installation tools and methods

Product Highlights

The EFF 109664-lf brass reducing tee delivers a reliable, lead-free connection point for PEX plumbing systems, handling a 3/4 inch by 3/4 inch by 1/2 inch configuration that suits a wide range of residential and commercial water distribution needs.

Product Information

Standard Information

• Brand: EFF
• Manufacturer Part Number: 109664-lf

Technical Specifications

• Fitting Type: Tee
• Material Construction: Brass
• Connection Size 1: 3/4 inches
• Connection Type 1: PEX
• Connection Size 2: 3/4 inches
• Connection Type 2: PEX
• Connection Size 3: 1/2 inches
• Connection Type 3: PEX
• Connection Type: PEX x PEX x PEX