ProPEX rings are required to make ProPEX connections. The 1/2 in through 3 in rings include a leading-edge chamfer and integral stop edge to further simplify the use of ProPEX fittings.

Uponor Ring, Fitting/Connector Type: Ring, 3/8 in Nominal Size, PEX, 0.54 in Length, Polyethylene, 0.49 in ID x 0.74 in OD

• ASTM F877 specification for crosslinked polyethylene (PEX) plastic hot and cold-water distribution systems
• ASTM F876 specification for crosslinked polyethylene (PEX) tubing
• ASTM F1960 specification for cold expansion fittings with PEX reinforcing rings for use with cross-linked polyethylene (PEX) tubing
• ASTM E84 test method for surface burning characteristics of building materials
• ASTM E814 test method for fire tests of penetration firestop systems
• ASTM E119 test methods for fire tests of building construction and materials

• Catalog https://hs-beta.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/https://assets.unilogcorp.com/2/ITEM/DOC/Uponor_5550015_Catalog.pdf
• Specification Sheet https://hs-beta.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/https://assets.unilogcorp.com/2/ITEM/DOC/Uponor_Q4690302_Specification_Sheet.pdf
• Warranty Information https://hs-beta.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/https://assets.unilogcorp.com/2/ITEM/DOC/Uponor_Q4690302_Warranty.pdf