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The UPONOR F4241000 is a 1-inch nominal AquaPEX crosslinked polyethylene coil tubing manufactured using the Engel process, which produces a PEX-a grade pipe recognized for its superior flexibility and memory characteristics. The tubing measures 0.862 inches inside diameter and 1.125 inches outside diameter, delivered in a 100-foot coil. Licensed plumbers and mechanical contractors use this tubing in hydronic heating, potable water distribution, and radiant floor systems where flexible, durable piping is required. The white and red color coding supports quick identification during installation.
This tubing is suited for residential and light commercial plumbing and hydronic applications. Its flexibility allows it to navigate framing cavities and mechanical chases with fewer fittings than rigid pipe. The 100-foot coil length reduces the number of joints needed across longer runs, which is advantageous in both new construction and retrofit installations. The Engel-process crosslinking method provides consistent cell structure throughout the pipe wall, supporting reliable long-term performance in both hot and cold water service.
Designed as an OEM-style replacement and standard-fit tubing for residential and commercial PEX-a plumbing and hydronic heating systems requiring 1-inch nominal pipe.
Installation should be performed by a licensed plumber or mechanical contractor in accordance with local plumbing codes and ASTM standards for PEX tubing. Shut off the water supply and depressurize the system before cutting or joining tubing. Use only fittings and tools rated and listed for PEX-a pipe at the applicable diameter. Support spacing, bend radius limits, and expansion joint requirements should follow the manufacturer guidelines and applicable IPC or IRC provisions.
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