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Sentinel combiguard replacement cartridge
Product Code: 608147
Replacement units for the Sentinel CombiGuard provide continued protection for domestic hot water systems from the effects of scale deposition.
- Uses a food grade polyphosphate
- Completely safe to drink
- Prevents the formation of limescale in central heating systems
- Can be used to protect an entire heating system or a single appliance
- Cartridges last for 12 months.