The filling loop is a part that only occurs on systems that deal with central heating. The filling loop allows the user to manually modify the volume of water within your central heating system. Filling loops can be internal or external, depending on the
Supplier Part Number: 014731
Fits a large number of Vaillant appliances
Made To Order
Manufacturer Model No
One or more item(s) in your basket aren't available for delivery to
Unfortunately, we were unable to find any substitute items to replace them with. To continue with the order we will have to remove them from your basket.
If you would like to prevent any changes, press cancel.