The Ariston filling loop is a useful spare part for Ariston Micro Genus II, Micro System, ACO, Micro Genus, Micro Genus HE, Eco Combi, Genus, and Eco System boilers. for use in central heating boilers and systems, allowing the user to manually top up the amount of water in the system if the pressure drops. External loops are typically removable to comply with regulations, whereas internal filling loops typically include a key that can be removed to interrupt the connection after use.

Brand Name	Ariston