Chemicals & Filters

At Direct Heating Supplies we have a wide range of water treatment and filtration products. We have all the chemicals and filters needed to treat your central heating and plumbing systems from leading brands including Fernox, Monarch and Sentinel.

Search in chemicals & filters

Filter and options

Show VAT?

ADEY MagnaClean Professional 2 & MC1 + MC3 Chemical Pack

£138.79 Excl VAT £166.55 Inc VAT

Adey MagnaClean Professional Filter 22mm

£109.73 Excl VAT £131.68 Inc VAT

Adey MagnaCleanse Complete Flushing System MACK01

£657.02 Excl VAT £788.42 Inc VAT

MagnaClean Installers Pack 22mm

£130.33 Excl VAT £156.40 Inc VAT

Adey MagnaClean Professional 2 22mm Black Pro2 CP1-03-00022

£109.04 Excl VAT £130.85 Inc VAT

Adey MagnaClean Professional Filter 22mm TwinTech MCTT001

£121.92 Excl VAT £146.30 Inc VAT

28mm MagnaClean Professional Filter MC28002

£177.05 Excl VAT £212.46 Inc VAT

Adey MC1+ Central Heating Protector 500ml CH1-03-0166

£10.54 Excl VAT £12.65 Inc VAT

Adey MagnaClean Professional Filter 22mm Micro MCMW001

£89.55 Excl VAT £107.46 Inc VAT

Adey MagnaClean Micro 2 Filter | FL1-03-01274

£86.20 Excl VAT £103.44 Inc VAT

Adey MC3+ Central Heating Cleaner 500ml CH1-03-01670

£9.69 Excl VAT £11.63 Inc VAT

Adey MC5 Rapid Flush System Cleaner 500ml CP1-03-00999

£16.00 Excl VAT £19.20 Inc VAT

Need some help?

Take a look at our handy guides

Whether you are looking for a new boiler, planning how many radiators you need or starting your renewable energy journey we have a handy guide to help you.

Our guides include product information, recommendations and advice when purchasing and installing new appliances in your home.

Find out more