Fernox F5 Express Cleaner
Fernox F5 Express is a no mess, no hassle aerosol product which has been designed to make the job of dosing a central heating system quick and simple.
Fernox F5 cleans out the system of all heavy scaling.
This product is universally compatible with all central heating systems. because of its versatility, it's highly regarded as one of the best central heating cleaners on the market.