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with a functional lifespan of approximately three to four months
the filter is easy to remove
or you've dropped and cracked your filter's canister when cleaning out your media
With its adjustable flow rate
Black Knight 4" Dia x 12" Long Filter Brushes - 25 Pack aquacolour-white with a functional lifespan ofWhat are Black Knight Filter Brushes: Black Knight filter brushes are made from the very highest quality Hydrotek polypropylene twisted into two stainless steel wires to form a cylindrical brush with a loop at one end for hanging. The other end is capped with a plastic knob for safety. They last indefinitely and are the easiest to use, most efficient and most cost effective pond filter medium you can buy. Our brushes are used in filtration systems in