Q: Are the Viega polymer fittings compatible with Fostapex? Also, are they suitable for use in a hydronic heating set up with cast iron radiators that will also have an antifreeze mix in it?
Asked by Joshua 10 years ago
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Verified Reply- SupplyHouse Staff
Yes, they are compatible with Fostapex and meet or exceed all of the temperature and pressure ratings that the tubing would. They would be suitable for that sort of system.
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