A filling loop is a pipe that attaches the central heating system to the mains water supply. The boiler filling loop is used to re-fill a central heating system with water and normally come in good quality stainless steel for durability. These metal filling loops can be used to re-pressurise boilers when installing or servicing. They are a useful tool to top up the water supply for combination boilers.
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Filling loops are available in a variety of lengths and suit a choice of central heating systems as well as specific fixings such as a combi boiler filling loop. These are high-quality products that are offered at affordable prices.