3/4 inch x 3/4 inch x 1/2 inch PEX Stainless Steel Reducing Insert Tee PEX x PEX x PEX

3/4 inch x 3/4 inch x 1/2 inch PEX Stainless Steel Reducing Insert Tee – For Main-to-Branch Size Transitions

The 3/4 inch x 3/4 inch x 1/2 inch stainless steel reducing insert tee is a mechanical fitting used to connect two 3/4 inch PEX lines with a 1/2 inch PEX branch. Engineered for use in potable water and hydronic systems, this component provides a corrosion-resistant, pressure-rated solution for applications requiring a reduced outlet from a main line.

Technical Specifications

• Material: 304 stainless steel – resistant to scaling, corrosion, and thermal fatigue
• Connection Type: PEX insert/barb x PEX insert/barb x reduced PEX insert/barb
• Nominal Sizes: 3/4 inch x 3/4 inch x 1/2 inch
• Installation Method: Compatible with ASTM F1807 or F2098 crimp/clamp ring systems
• Pressure Rating: Up to 200 PSI at 73°F; suitable for service temperatures up to 200°F
• Compliance: Certified to NSF/ANSI 61 and 372 for lead-free potable water applications

Typical Applications

This reducing tee is used to branch off 1/2 inch PEX lines from 3/4 inch main supply tubing. It is commonly specified in new residential builds and renovation work, supporting fixture drops, manifold branches, and distribution to zones in both hot and cold water systems.

Installation Guidelines

Ensure square cuts and full insertion of PEX tubing over each barb end. Secure using appropriate crimp or clamp rings with calibrated tools. This fitting does not require thread sealant or plumber’s tape, as all joints are mechanical insert-type. Pressure testing post-installation is recommended to confirm joint integrity.

Performance Considerations

Stainless steel insert fittings are suitable for use in systems with aggressive water chemistry or in areas where dezincification of brass is a concern. Their mechanical strength and corrosion resistance offer reliable service in high-cycle and high-temperature plumbing environments.