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Black EPDM rubber liner for medium to large ponds
Liquid drop tests for accurate and reliable results
creating an extremely porous structure
you need the Oase Pondovac Classic
Evolution Aqua Kplus Advanced Filter Media 25 Litre Product Type_Bottom Drains Black EPDM rubber liner forNew advanced filtration media Plastic media, for use in biological pond filters specifically in moving bed bio reactors, was pioneered by Evolution Aqua, some 20 years ago. In recent years, other plastic media have come onto the market, usually with the aim of trying to get more and more surface area. However, one drawback to using plastic media has always been the time it takes to establish a stable biofilm essential for good filtration. After many