Uponor North America now offers a solution for PEX hydronic heating and cooling applications with back-to-back installation spacing constraints. The new ProPEX engineered polymer (EP) opposing-port tees eliminate the need for additional tees and elbows to facilitate piping in two directions, reducing the number of required fittings by 75 percent. Available in 1-, 1 1/4-, 1 1/2- and 2-inch flow- through sizes with 3/4-inch outlets, the ProPEX EP opposing-port tees are listed to ASTM F1960 and NSF 14, as well as are code-compliant with the International Mechanical Code and Uniform Mechanical Code for hydronic heating and cooling applications.