The 665XA2N100 from Sioux Chief is a 100ft roll of 1/2” PowerPEX Non-Barrier PEX-a Tubing, Natural. Intended for use in hot, cold, and potable water applications. Direct replacement for Uponor/Wirsbo AquaPEX F1040500 (natural) / F3040500 (blue) / F2040500 (red) and Mr. PEX 1822060 (blue) / 1722060 (red). For use with F1960 style expansion fittings, expander tool and expansion sleeves. Fully compatible with Uponor ProPEX connection system.