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Our economical choice for floor heating tubing.

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Our economical choice for floor heating tubing.

HDX™ is an ultra-high molecular weight resin of high density polyethylene.

BioTherm HDX (high density extrusion) is our durable polyethylene tubing solution commonly used for in slab and floor heating. Manufactured from a ultra-high molecular weight resin, HDX tubing is extremely tough and meets stringent ASTM testing standards for quality. It’s made from a distinct red color, so you know you are getting true HDX tubing.

We also offer our GreenPEX with E-Beam cross-linking for increased durability, commonly used in institutional environments, available with or without oxygen barrier.


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Specifications (Meets ASTM Material Specification D 3350)

MaterialHD 2007 High Density PolyethyleneHD 2007 High Density Polyethylene
HDX ColorTerra-cottaTerra-cotta
Pipe Size1/2"3/4"
Nominal O.D..625".875"
Nominal I.D..485".681"
Minimum Wall Thickness.07".097"
Weight per 100 feet5.5 lbs10.6 lbs
Standard Coil Length1000 ft500 ft
Standard Coil Diameter16", ID inches20", ID inches
PrintingFt BioTherm 1/2" HDX Tubing (Date)(Time)Ft BioTherm 3/4" HDX Tubing (Date)(Time)
Pressure Rating180 psi @ 180° F (82 C)180 psi @ 180° F (82 C)
Flow Rate.0092 gal/ft..0184 gal/ft.
Normal Operating Temp.140°F (60 C)140°F (60 C)
Specification Sheet
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