Targeted for commercial plumbing or hydronic heating and cooling systems, Uponor offers its ProPEX groove fitting adapters for direct copper tube size (CTS) or iron pipe size (IPS) connections transitioning from PEX to metal piping. The complete offering, which is available in 2”, 2½” and 3” sizes in lead-free brass, allows designers and installers to directly connect Uponor PEX to groove fittings and couplings.