3/4 inch x 3/4 inch x 1/2 inch PEX Polyalloy Reducing Insert Tee Crimp x Crimp x Crimp

3/4" x 3/4" x 1/2" PEX PolyAlloy Reducing Tee – Insert Connection

The 3/4" x 3/4" x 1/2" PEX PolyAlloy Reducing Tee is engineered for joining dissimilar branch sizes in PEX potable water systems using ASTM F1807 or F2159 compliant fittings. This component features durable polyalloy construction and a compact tee body for seamless transitions between 3/4" main lines and 1/2" branches in pressurized plumbing systems.

Engineered for Jobsite Demands

• ✅ High-Performance PolyAlloy Constructed from engineered polymer (typically PPSU or equivalent) with excellent resistance to corrosion, chlorinated water, and high temperatures.
• ✅ Insert Ends Barbed connections support standard crimp or clamp ring assemblies for secure, code-compliant joints under ASTM F1807/F2159 standards.
• ✅ Pressure Rating: Suitable for up to 160 psi at 73°F and 100 psi at 180°F under standard PEX performance conditions.
• ✅ Temperature Range: Rated for continuous operation in potable hot and cold water distribution systems.
• ✅ Lead-Free Compliance: Meets ANSI/NSF 61 and NSF 372 standards for use in potable water systems nationwide.

Professional Installation Guidance

Install with ASTM-compliant copper crimp rings or stainless steel cinch clamps and the corresponding tools. Ensure pipe ends are cut square and fully inserted to the fitting shoulder. Verify each connection with a calibrated gauge after crimping. Proper installation guarantees long-term performance and leak resistance, especially in systems with variable temperature cycling or high service pressure.

Applications

This reducing tee is commonly used in residential and commercial PEX plumbing networks for branch line connections, particularly when transitioning from 3/4" trunk lines to 1/2" fixtures. Ideal for manifold systems, trunk-and-branch layouts, and compact routing scenarios behind walls or between joists.

Advantages in the Field

• ✅ Compact Profile Reduces bulk in tight areas and simplifies pipe layout in wall cavities and utility spaces.
• ✅ Chemical & Scale Resistance Polyalloy construction withstands aggressive water conditions including high chlorine content and mineral scaling.
• ✅ Thermal Stability Maintains dimensional integrity and mechanical performance across wide temperature ranges.
• ✅ No Electrolysis Non-metallic body avoids issues associated with dissimilar metal corrosion when used in mixed-material systems.

Technical Specifications

• Material: PolyAlloy (PPSU)
• End Connections: Insert (barbed) x Insert x Insert
• Sizes: 3/4" x 3/4" x 1/2"
• Standards: ASTM F2159, NSF/ANSI 14, 61, 372

Did You Know?

PolyAlloy insert fittings exhibit thermal expansion characteristics similar to PEX tubing, helping maintain joint integrity in fluctuating temperature environments, making them ideal for domestic water systems and radiant hydronic applications alike.

The 3/4" x 3/4" x 1/2" PEX PolyAlloy Reducing Insert Tee offers long-term reliability in pressure-rated potable systems. Specify this component when corrosion resistance, weight reduction, and dimensional stability are critical. Built to perform in demanding jobsite conditions while maintaining compliance across jurisdictions.