Discount Koi Pond Supplies » Pond Filtration » Lowboy Filters   The following discounts apply to all these products. 15% Off Any Order Over $50 (before shipping) Lowboy Filter Filters up to 1000 gallons, internal use The Lowboy is a low-maintenance in-the-pond mechanical and biological pond filter designed for ponds from 100 to 1000 gallons. In a properly planted and stocked pond, the Lowboy will help keep pond water crystal clear. The filter contains two large filter pads with a total of 908 square inches of surface area, plus plastic bio-balls and aqua rock bio-media. This filter is easily adaptable to all pumps and is easy to clean and maintain. Maximum flow rate is 500 gph. more product details  Our Price: $48.75 Lowboy Replacement Pads Set of 2 each The Lowboy is a low-maintenance in-the-pond mechanical and biological pond filter designed for ponds from 100 to 1000 gallons. In a properly planted and stocked pond, the Lowboy will help keep pond water crystal clear. more product details  Our Price: $21.95