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What is the difference between Pex and oxygen barrier BPex?

April 26, 2017barrier bpex oxygen pex

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What is the difference between Pex and oxygen barrier BPex?

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A. BPex is standard Pex that is manufactured with a special external coating that prevents available oxygen from permeating the tubing. Available oxygen in the water is what causes rust to form on ferrous radiant system components. We recommend BPex tubing for all radiant systems. If you use standard Pex tubing for your radiant system, instead of the recommended BPex tubing, you will need to install corrosion resistant system components (stainless steel, brass or bronze pump, boiler and fittings).