IWISS PEX Expansion Ring 3/4 Inch(25 Pack), Expansion Reinforcing Sleeve, Compatible with PEX-a Pipe and F1960 Brass or Poly

Size 0.75 Inch
Material Pex,Brass
Color Brass
Exterior Finish Brass
Number Of Pieces 25
  • Designed for use with 3/4 in. PEX-A pipe and 3/4 in. PEX-A barb fittings. For use exclusively with PEX-A (ASTM F1960) pipe and systems.
  • Cross-References: Uponor ProPEX rings, Sioux Chief PowerPEX rings. Compatible with Uponor/Wirsbo hePEX & AquaPEX, Sioux Chief, Mr. PEX, Rehau and other PEX-A tubing brands.
  • Material: Manufactured from PEX-a material. Degree of Crosslinking: 70% to 89%.
  • Lab & Field Approved: ASTM F1960/CSA B137.5-2019a/2017 – per NSF/ANSI 14.
  • Expansion Ring w/ Stop: PEX Expansion sleeves with stop includes a leading edge chamfer and stop edge to ensure proper placement of the sleeve.
SKU: B09DSRRWKM Category:

Product description

Product Description

PEX-A Expansion ring pex expansion sleeve


IWISS expansion rings are used to join PEX-A pipe and F-1960 expansion fittings. Expansion sleeves are engineered with a bevel along the leading edge to ease pipe insertion and an integrated stop to ensure proper placement of the sleeve.

ProPEX style (works with Uponor, Sioux Chief, Mr PEX & others)

F1960 cold-expansion fittings make solid, permanent, manufactured connections without the need for torches, glues, solder, flux or gauges. The unique shape memory of crosslinked polyethylene (PEX-a) tubing forms a tight seal around the fitting, creating a strong, reliable connection. This type of joining system is very robust and creates a reliable joint but requires an expansion tool with a different head for each size of tubing. This type of joint is made by placing a PEX ring over the end of the tubing and expanding the tubing until a fitting can be pushed in and the “memory” of the PEX shrinks onto the fitting.

Technical Data


PEX-a (Engel Method)


926 to 940 kg/m3

Degree of Crosslinking:

70% to 89%

General Connection Tips

  • If the fitting does not slide into the tubing all the way to the stop, immediately remove it from the tubing and expand the tubing

one final time.


To avoid over-expanding the tubing, do not hold the tubing in the expanded position.

  • Experience, technique and weather conditions influence the actual number of expansions. Fewer expansions may be necessary under certain

conditions. The correct number of expansions is the amount necessary for the tubing and the shoulder of the fitting to fit snugly together.

Additional information

Dimensions 5.43 × 2.05 cm


Item Weight

‎4.6 ounces

Package Dimensions

‎5.63 x 5.43 x 2.05 inches


‎0.75 Inch





Number Of Pieces


Measurement System


Batteries Included?


Batteries Required?




Date First Available

December 6, 2021

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