
- The ProPEX® Engineered Polymer (EP) Reducing Tee makes diverting connections to Uponor PEX-a crosslinked polyethylene pipe for use in hot and cold domestic potable-water systems, residential fire sprinkler systems, and hydronic radiant heating and cooling systems. Each end of the tee is manufactured with an Uponor ProPEX fitting for connections to Uponor AquaPEX® or Wirsbo hePEX™ pipe. Note that the branch size is listed last in the part description.