Black Knight Filter brushes are designed as a pre-filter for removing coarse waste and/or as a biological filter medium. Any design of filtration chamber will suit these brushes and they are easily removed for cleaning.
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
Black Knight brushes are by far the most efficient and user-friendly product for removing suspended particles from your pond water.