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Best Central Heating Inhibitor Test Kits of 2025
Best Choice
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Clicked 4 times in the last monthBoiler-m8Boiler-m8 Defender-2 22mm Magnetic Boiler Filter Central Heating Inhibitor and Cleaner Concentrate Pack Fluid Prevents Corrosion and Lime Scale Improves Heating Efficiency
Value for Money
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BestplumbingSentinel X100 Inhibitor 1L Protect Central Heating System Cleaner (Pack of 1)
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SentinelSentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000)
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PHPPHP Rapid Inhibitor Test Kit Strips for Central Heating & Underfloor + PDF Certificate (6)
Free Shipping5
Trade ChemicalsCentral Heating System Inhibitor (500ML) Treats 100L System C100
Free Shipping6
SPIQuickFill - SEL9260: Central Heating Dosing Tool - Add Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 to Your Central Heating System
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EverbuildEverbuild P14 Central Heating System Inhibitor, 1 Litre
Free Shipping8
FernoxFernox 56599 F1 500 ml Central Heating Protector
27% Off Free Shipping9
LavaTapSentinel X100 Inhibitor 500ml Prevents Limescale and Corrosion Super Concentrate Inhibitor for Central Heating Systems
Free Shipping