Baxi 600/800 Potterton Main Eco 25/30 Compact 7L Expansion Vessel 7683801. Baxi 600 615 V1 SYSTEM NG. Baxi 600 615 V2 SYSTEM NG. Baxi 600 615 V3 SYSTEM NG. Baxi 600 618 V1 SYSTEM NG. Baxi 600 618 V2 SYSTEM NG.
eBay