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HeatMaster RhinoFlex Foam Insulated PEX


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HeatMaster RhinoFlex

HeatMaster Rhinoflex polyurethane insulated underground pipe. Solid foam insulation makes this pipe much stronger than types that have an air space and will not get water logged if the outer casing is compromised. Like all solid foam type insulated pex, it is much more difficult to bend while installing than the wrapped type pipe. But it does have the ribbed outer shell which makes it much easier to work with that the type with smooth outer shell. Only available with oxygen barrier so will work on open or closed systems.
  • The highest insulation value of any foam in the industry resulting in a smaller outer jacket and dramatically reduced heat loss.
  • It has the heaviest, most rugged outer jacket available.
  • Waterproof closed cell urethane foam insulation.
  • 25 year warranty.
  • Ribbed outer jacket for more flexibility and reduced expansion and contraction during heat/cool cycles.
1" pex Actual Inner ID 0.875" $13.50 per foot
1" ID 32mm OD (similar inner ID to 1-1/4" ) Actual Inner ID 1.032" $13.95 per foot
1-1/4" pex* Actual Inner ID 1.054" $14.95 per foot*
Not stocked. Sold by 500'  roll only.
  This pipe is very similar to Logstor Pexflex, Rehau Insulpex and Thermopex. 

Pex Tubing

Standard size pex tubing is manufactured to SDR9 standards which is the same outside diameter as copper pipe but has a wall thickness 1/9th the diameter. 32mm size is SDR11 which means it has a thinner wall. This makes it easier to work with and more insulation compared to 1-1/4" that has almost the same ID size.

* Non Barrier pex tubing is either Red or Blue throughout the pipe (inside and outside ).
* Oxygen Barrier pex tubing is either Red or Blue on the exterior but the inside will appear almost white.
(Example: the 3/4" Pex above is Non Barrier and the 1" Pex is Oxygen Barrier ( inside almost white ). )
* All Pex tubing is pressure rated at 80 psi @ 200 degrees and 100 psi @ 180 degrees.
* Our pex is complies with ASTM F876/F877 standards with ROHS certification


Pex-Al-Pex Tubing

Pex-al-pex is sold as inside diameter instead of copper tube size. It has a few advantages over normal pex. It doesn't expand in length so if you have an installation that can not allow for expansion when the pex gets hot you may want to consider it. Also the sizes fall between pex so it is also a good alternative if you need something a little bigger than 1" pex.

PEX-AL-PEX is made with an exterior layer of PEX then adhesive followed by a layer of aluminum, another layer of adhesive and finally a layer of PEX. The aluminum acts as an oxygen barrier so all PAP tubing is considered OB.

Please Contact us for more info or with any questions
Philip Howard / RSI
109 Commercial St / PO box 341
Arlington, WI 53911

Have a quick question, feel free to send a text to 608-438-8300
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