F4 at Mr Central Heating

Fernox F4 Express Leak Sealer

Fernox F4 express leak sealer seeks out and seals most leaks and weeps in sealed systems without causing blockages or pump seizure saving time and money on draining down and unnecessary repairs. It can be quickly and conveniently added via a radiator adaptor or the filling loop supplied. Combats…

was: £17.32 Incl. VAT Regular Price

Special Price now: £16.45 Incl. VAT £13.71 Excl. VAT

Hydrocare H+3 Leak Sealer - 500ml Concentrated

Hydrocare leak sealer for small leaks and weeping joints. 500ml bottle of H+3 concentrated leak sealer is enough to help stop small leaks for 100 litres of system water or up to a 10 radiator heating systemFor internal use on heating systems. Repairs small leaks and weeping. Ideal for areas with…

£6.25 Excl. Tax £7.50 Incl. Tax

Fernox F4 LSI Leak Sealer 500ml

Fernox F4 LSI leak sealer seals most weeps and small inaccessible leaks in sealed systems without causing blockages of the pump, air vents etc saving time and money on draining down and unnecessary repairs. Ideal for reducing system pressure loss Compatible with all metals and materials commonly…

£11.76 Excl. Tax £14.11 Incl. Tax

Fernox F4 Super Concentrate Central Heating Leak Sealer 290ml

The 290ml Fernox F4 super concentrate central heating leak sealer is compatible with all Fernox corrosion protectors. Easily and quickly added via one of the radiators, it seeks out and seals most weeps and leaks without causing blockages of pumps, air vents, etc saving time and money on draining…

£18.86 Excl. Tax £22.63 Incl. Tax

Fernox water treatment systems at Mr Central Heating

Fernox LS-X Leak Sealer 50ml

Fernox LS-X leak sealer comes in a 50ml tube. Ready to use with no mixing required, the sealant is ideal for use on compression joints and screwed fittings. It never sets rock hard, meaning that joints can easily be undone, nor does it shrink or crack with age. WRAS approved product Suitable for use…

£3.86 Excl. Tax £4.63 Incl. Tax