Seachem Purigen 250ml

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Purigen is a premium synthetic absorbent that is unlike any other filtration product. It is not a mixture of ion exchangers or absorbents, but a unique macro-porous synthetic polym er that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others by over 500%. Purigen darkens progressively as it exhausts and is easily renewed by treating with bleach. Show more