Designed for commercial hydronic heating and cooling systems, the code-listed, commercial-grade ProPEX brass transition fittings from Uponor are available in sizes from 1/2” to 2”. The complete offering, which is manufactured from high-quality C36000 brass, includes 31 transition fittings that convert ProPEX connections to male thread, female thread, copper-tubing sweat, copper-fitting sweat and copper-fitting press. When used with the PEX oxygen-barrier pipe, these fittings offer a durable, cost-effective solution for transporting water to HVAC terminal units.