This 30-pack of Uponor ProPEX 3/4-inch expansion ringsGo to product viewer dialog for this item. is manufactured from high-quality PEX-a material to ensure consistent, durable connections in cold-expansion plumbing networks. Designed for compatibility with ASTM F1960 fittings and 3/4-inch PEX-a tubing, each ring includes an integrated stop edge to align the unit perfectly with a precise 1/16-inch overhang at the pipe's end. A specialized leading-edge chamfer simplifies installation when used with manual or motorized expansion tools. These reliable components are ideal for a broad range of residential and commercial applications, including potable water systems, hydronic radiant heating, cooling systems, and fire sprinkler installations

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