In this video I'll introduce you to a product that replaces the sand in a sand filter AND it'll make your sand filter filter as effectively as a DE filter without the health and safety risks, maintenance hassles or mess of a DE filter.

Video Links:
DE Filters And Why You Shouldn't Have One: [ Ссылка ]

Product Links:
Dr. Dryden's Activate Glass Filter Media (Maytronics): [ Ссылка ]

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