10 bestRadiator Cleaner Fluidsof December 2025
112M consumers helped this year.
1
nextzett 96110615 Klima-Cleaner Air Conditioner Cleaner-10 fl oz, 10. Fluid_Ounces, 12 Pack
nextzett
9.7
2
Nu-Calgon 417175 Evap Foam No Rinse Evaporator Coil Cleaner (2-Pack) + Can Gun Tool Aerosol Sprayer
Air Pure Shop
9.4
3
Royal Purple 12600 Purple Ice Super-Coolant Radiator Additive, 12-Ounce, Pack of 12
Royal Purple
9.1
8% off
4
ComStar 90-298 Coil Safe Professional Grade Neutral pH Evaporator and Condenser Coil Cleaner, 1 gal Container, Green
Comstar
8.8
5
Rectorseal 82612 1-Gallon Coil-Rite Coil Cleaner
Rectorseal
8.5
Other
Prestone Products Corp Radiator Flush/Cleaner AS105R
PrimoChill Rad Clean - Radiator Cleaning Treatment KIT
Nu-Calgon 417175 Evap Foam No Rinse Evaporator Coil Cleaner + Can Gun Tool Aerosol Sprayer
CosWarm CW2 Central Heating System Silencer – Boiler & Radiator Noise Reducer Absorber & Dosing Liquid for Closed Loop System & Hydronic System – Reduces Boiler Noise - Treats 18 Single Radiators
6% off
6
Nu-Calgon 417175 Evap Foam
NU-Calgon
8.2
7
CosWarm CW1 Central Heating Inhibitor & Protector | Treats Up To 18 Radiators | Boiler Water Treatment Chemicals | Prevents Rust, Corrosion & Scale in Boilers, Hot Water Systems & Hydronic Heating Systems
CosWarm
7.9
8
Radiator Genie - Water & Air Cleaning Wands for High Efficiency Cooling Systems and Radiators - Blow Out / Wash Out Kit
Radiator Genie
7.6
9
Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051
Liqui Moly
7.3
10
3X:Chemistry 117 46822 Foaming Coil Cleaner - 18 oz.
3X:Chemistry
7.0
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