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PurelyH2O, The World Leader in the manufacture of affordable, quality reverse osmosis ro/di aquarium fresh water and salt water reef filtration equipment, water testing meters and a complete selection of filter replacement media.
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Beautiful Fish Deserve Beautiful Water! ReefresH2O™ is a sterile, highly porous ceramic media used for biofiltration in freshwater and saltwater aquariums. Available in spheres, cartridges, plates, blocks and BioRocker™ system.
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