Potterton Tap Isolation Return 248225 is fitted underneath the boiler, and it allows the user to control the flow of water in to the central heating system. This also allows you to stop the flow completely in case of a leak or emergency.
Some engineers refer to this vale as Potterton isolation valve, central heating valve, heating tap, Boiler flow and return valve.
Potterton Tap Isolation Return 248225 is a Genuine Baxi Spare Part.
