To connect a bathroom radiator in a copper or PEX installation, left or right. Included in the set: - radiator connections 1/2 for copper installation 15mm and PEX 16mm, - thermostatic head M30×1.5, - supply valve and return valve. To switch sides of the set (from left to right), you need to unscrew the insert from the return and supply valves, switch sides, and screw back into the bodies.