POND KOI FISH FILTER MEDIA 3 FOAM SET 21" X 43" 108CM X 53CM COARSE MEDIUM FINE

Multiple Uses - The filter foams have been designed to work universally with most filter systems -simply cut out the holes needed or trim each layer to fit. Egg Box Shape -Each foam sheet has an "egg box" design shape that increases the surface area for bacteria to grow.

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