We deliver to anywhere within the UK mainland, please see our 
Sentinel
Sentinel provides a range of high quality products for the cleaning, protection and noise reduction of domestic heating systems which improve system reliability, increase fuel saving and extend system life. Its products are recognised and trusted by heating engineers, installers and specifiers across Europe. Sentinel has an impressive product design and development programme which is focussed on introducing new, advanced and environmentally acceptable products to its range.
Sentinel X100 Inhibitor
Sentinel X100 Inhibitor
A general purpose treatment for total protection against scale and corrosion in all types of indirect central heating systems, including those containing aluminium. Will extend the life of the system, and ensure maximum efficiency and minimum fuel usage.
Prices from £12.47
Sentinel X200 Noise Reducer
Sentinel X200 Boiler Noise Reducer
A unique, life-long system treatment for the elimination of limescale and boiler noise. Safe to use in all types of indirect central heating systems and will quickly pay for itself in reduced fuel usage.
Prices from £12.77
Sentinel X300 Universal Cleaner
Sentinel X300 Universal Cleaner
Flushes out flux and installation debris from new indirect central heating systems and those up to 6 months old. An essential remedy against scale and sludge.
Powerful, heavy duty cleaning action.
Prices from £13.27
Sentinel X400 Sludge Remover
Sentinel X400 Sludge Remover
A ruthlessly efficient way to eliminate the build-up of magnetite sludge, X400 is the quick and easy way to eliminate cold spots and restore full heat emission.
Restores circulation to part blocked radiators.
Prices from £12.77
Sentinel X500 Inhibited Antifreeze
Sentinel X500 Inhibited Antifreeze
Provides protection against scale and corrosion in all types of indirect heating systems, including those containing aluminium components, whilst preventing freezing.
Prices from £19.33
Sentinel X800 Jetflo
Sentinel X800 Jetflo
Sentinel X800 Jetflo is a heavy duty cleaning formulation designed to remove corrosion deposits and scale from boiler heat exchangers, radiators and pipework in domestic central heating systems.
Prices from £13.47
Sentinel Deposit Remover
Sentinel Deposit Remover
Sentinel Deposit Remover is a powerful highly active cleaning agent for use in central heating systems.
Suitable for use with all commonly encountered metals and alloys.
Prices from £42.45
Sentinel Rapid Dose
Sentinel Rapid Dose
RAPID-DOSE™ is the brand new system designed to make the dosing of Sentinel's tried and tested performance water treatments chemicals into a central heating system quick, clean and easy.
Prices from £14.41
Sentinel Combiguard
Sentinel Combiguard
The Sentinel Combiguard unit provides protection for domestic hot water systems from the effects of scale deposition. It works by proportionally blending a minute amount of polyphosphate into the system water.
Prices from £30.57
