PEX Tubing from Mr PEX and HousePEX - PEX Accessories for 5/8 Inch PEX Pipe
PEX Radiant Supplies for 5/8 inch PEX Tubing - such as Brass Fittings, Foil Insulation, Radiant Manifolds, Pex tubing, Uncoilers, PEX Tube Tools and more. 5/8 inch PEX Tubing allows you to run longer loops than 1/2 inch pex pipe. Loops for 5/8 Inch PEX should not be over 400 feet and is generally used for commercial spaces or other large in floor (Slab) installations.
For other hydronic heating supply needs try our hydronic heating supply section.
5/8 Inch PEX Tubing is a least common sizes of PEX Pipe for Residential Radiant Heat Systems. However, you can run longer loops than 1/2 inch PEX up to 400 feet or less. For this size PEX - it would be a good idea to use this for larger Cement Slab installs or for connecting separate systems. We would not recommend that you use this for under the floor as it has a much larger bend radius. We recommend PEX A as it is more flexible and can be un-kinked with a heater when kinked. Other PEX such as PEX B this is not possible. Thermal heat mass Creatherm works with 5/8 inch pex tubing and we also have PEX Radiant Manifolds are also available from 2 loops up to 13 loops.
We have a lot more information on Radiant PEX Heating Installs - Click here to see our Radiant Heating Learning Center