25KG of Top Quality Premium Coconut shell Granular Activated Carbon for External Aquarium Filters, Water Decholrinators/Water Purifiers. Activated carbon is used for the removal of chlorine and chloramines from everyday tap water, making it safe for fish use. This premium grade carbon is in micro pellet form allowing maximum water coverage. As with ALL activated carbon once installed we recommend an initial rinse or backwash of your purifier to remove the first batch of black water from the carbon dust/residue, before entering water to your pond/aquarium.
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