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Diatoms are unicellular algae present in both fresh and salt water and have the ability to retain silicon dissolved in water. After they die, their skeletons fossilize, forming a white, light and very porous rock called diatomite. From this rock, drying and crushing it, the diatomite powder used in water filtration is obtained. Thanks to the great porosity and small size of the diatomites, particles of up to 2 microns are filtered. At Q-Tech we offer you the best diatom filters so that you can achieve unmatched quality and maximum crystallinity of the water in your pool.