Combi Filling Loop Double Checkl & Ball Valve

The filling loop typically consists of two flexible hoses with shut-off valves at each end, and connected to the cold water supply and the boiler's central heating circuit. The filling loop allows water to be introduced into the heating system, increasing the water pressure to the desired level. Once the correct pressure is achieved, the shut-off valves on the filling loop can be closed, isolating the loop from the system.