The primary applications of PEX tubing with Oxygen Barrier are radiant floor heating, snow & ice melting, running water lines. The non-barrier PEX tubing, or simply "PEX tubing" is used for traditional hot and cold water plumbing projects mostly in residential buildings. The applications of PEX-AL-PEX tubing are the same as of the regular PEX, but the two have a distinctive difference. PEX fittings, just like any other pipe fittings, are used to connect various PEX tubing sizes and create a transition to solder or threaded connection.
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