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Insulated PEX and Parts for Outdoor Wood Boilers.

PerformaFlex XT is simply the best value.
We have the best warranty in the business: a lifetime replacement plus our 10x10x10 plan.


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Why PerformaFlex XT is your best choice

With a tested temperature loss of only .67 degrees per 100 feet, PerformaFlex XT outperforms urethane insulated PEX brands by a mile.

The blue, dual wall, outer casing is the key to durability and we use only top grade materials to ensure your pipe keeps working for you.

Our Amazing 10 x 10 x 10 Remediation Warranty even pays for time and trouble for manufacturers defect. No one else in the industry offers this protection.

Why PerformaFlex XT stands out from the rest.

Don't buy insulated PEX until you watch this video.


PerformaFlex XT offers a quality insulated supply line. It's very easy: just unroll, place in trench and connect your ends and it's done, our installers love it. I also thank you for having such a variety of American made products available first priority, we appreciate your efforts.

— Tom Mason, Maple Woods Heating

I've sold and installed hundreds of outdoor wood boilers. I've used several brands of insulated PEX. None of them match the quality of the PerformaFlex brand manufactured by Z Supply. Jeff and his team make an outstanding product and provide excellent customer service.

— Matt Stairs, Twin Springs Heating