Kolar Catalytic Crystal Cal Carbon - 500g Ultraviolet light sanitizers are a

Ultraviolet light sanitizers are a proven and dependable method for controlling algae

Directions

Pro Improved Features: Larger Encapsulated Magnet

and the jointed connection assembly makes it simple to adjust the distance from the aquarium wall

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Kolar Catalytic Crystal Cal Carbon - 500g Ultraviolet light sanitizers are aPremium Catalytic Carbon for Chlorine and Chloramine removal in an RO or RO DI system. For optimal chloramine removal, it is recommended that two catalytic carbon cartridges are used in series. Optionally, you can use one catalytic carbon cartridge and one carbon block cartridge. Can refill one 10" refillable cartridge.