Sioux Chief 641WP333 Pex-a Poly Tee 3/4 Inch F1960

Product Description

The SIOUX CHIEF 641WP333 is a 3/4-inch F1960 PEX-A polypropylene tee fitting used to create three-way branch connections in PEX-A potable water and hydronic piping systems. All three ports measure 3/4 inch and conform to the ASTM F1960 expansion fitting standard, which requires an expansion tool and compatible PEX-A pipe for installation. Plumbers and pipefitters select this fitting for residential and light commercial plumbing rough-in where a reliable, lead-free branch connection is required. The expansion-style connection method produces a strong, memory-driven joint without solder, crimps, or clamps.

This fitting is suited for hot and cold potable water distribution, radiant floor heating, and other hydronic applications where PEX-A tubing is specified. The F1960 expansion method is commonly used in new construction and retrofit plumbing projects. It is compatible with 3/4-inch PEX-A pipe and matching F1960 expansion rings. Licensed plumbers typically handle installation in jurisdictions governed by the IPC or UPC.

Key Features

• All-port size: 3/4 inch, providing a uniform tee branch configuration
• F1960 expansion-style connection for use with PEX-A pipe only
• Polypropylene construction — lead-free and corrosion resistant
• Compatible with potable water and hydronic heating applications
• No solder, crimps, or clamps required for joint assembly

Compatibility

Designed as an OEM-style replacement and new-installation fitting for 3/4-inch PEX-A piping systems using the ASTM F1960 expansion connection method.

Installation Notes

Installation requires a calibrated F1960 PEX expansion tool and matching 3/4-inch expansion rings. Shut off the water supply and depressurize the line before cutting into an existing system. Allow expanded pipe ends to recover fully onto the fitting before pressure-testing the joint, as specified by ASTM F1960 procedure. This fitting is intended for use by licensed plumbers working under applicable local plumbing codes.

Technical Specifications

• Connection Type: F1960 PEX-A Expansion
• Port Size: 3/4 inch x 3/4 inch x 3/4 inch
• Material: Polypropylene
• Configuration: Tee (Three-Way)
• UPC: 739236423818

Standard Information

• Brand: SIOUX CHIEF
• Manufacturer Part Number: 641WP333