

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The SIOUX CHIEF 641px332 is a PPSU polymer PEX crimp tee fitting designed for use in residential and light commercial plumbing and hydronic heating systems. Sized at 3/4 inch by 1/2 inch, this tee is part of the AccuCrimp fitting system and conforms to ASTM F2159 standards. It is compatible with ASTM F876 PEX tubing and accepts both copper crimp rings and V-Sleeves. A patented set of positioning fingers built into the fitting aligns the crimp ring or V-Sleeve precisely over the sealing barbs, reducing the chance of an improper crimp. Licensed plumbers and pipefitters install this fitting in potable water and heating distribution systems.
This fitting is suited for residential and light commercial plumbing systems where PEX tubing is the distribution pipe. It is commonly used in new construction and retrofit installations involving branch connections off a 3/4 inch main run to a 1/2 inch branch line. The PPSU material is offered in white, which makes it easier to detect any chemical exposure or UV degradation over time. It works within the broader AccuCrimp manifold and fitting system for 1/2 inch, 3/4 inch, and 1 inch connections.
Approved for use with ASTM F876 PEX tubing using either copper crimp rings or V-Sleeves. Designed for integration within the SIOUX CHIEF AccuCrimp fitting and manifold system for safe plumbing and heating connections in 1/2 inch, 3/4 inch, and 1 inch sizes.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and applicable standards such as the IPC or UPC. Shut off the water supply and depressurize the system before making any connections. Use a calibrated PEX crimp tool or cinch tool appropriate for the ring or sleeve type being used. Inspect the crimp or sleeve position with a go/no-go gauge after each connection to verify a proper seal.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!