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Watts Radiant RadiantPEX-AL Tubing
(PEX-AL-PEX Pipe)

RadiantPEX-AL is a composite pipe engineered for radiant floor heating. We call it ALEX Pipe. It's proven, long lasting and maintenance-free. Installers like it because it's lightweight, durable and can be shaped to fit any jobsite. The aluminum layer protects boiler systems against corrosion and it has superior temperature and pressure ratings.

ALEX Pipe is manufactured to American Standard Testing Methods for composite radiant pipe and fittings (ASTM F-1281). Included are requirements and test methods for materials, workmanship, dimensions, environmental stress cracking, sustained hydrostatic pressure strength, thermo-cycling resistance and bend strength among other tests. RadiantPEX-AL meets or exceeds these specifications.

• Best of Both Worlds - Strength, memory and pressure rating of aluminum with the corrosion resistance of PEX, inside and out.
• Bends To Your Will - Rigid enough to hold itself in place for straight, neat runs with enough flexibility to go around obsticales without additional fittings.
• The Strong Silent Type - Doesn't expand as much as PEX, resulting in less noise in an underfloor application.
• Your Guardian Angel - 100% oxygen barrier.

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• Watts Radiant Heating - Full Catalog (30 MB Adobe PDF)
• RadiantPEX-AL Brochure (600 KB Adobe PDF)
• RadiantPEX-AL Tubing - Brochure (600 KB Adobe PDF)
• Watts Pipe Installation Manual (4.6 MB Adobe PDF)

NOTE: Availability for the Watts product line varies on the item and season. Lead time for non-stock items is generally 2 weeks. If your need is urgent, please Contact Us to check on availability for these products.