Water Genius Dissolvedoxygen Bio Filter Med SKU: PB02 Category: Pumps Filters and Undergravels Related products Resun Low Volt. Pump 550lph 12v 1.3m Aquafx Power Filter 2200l/hr Resun Low Volt. Pump 240lph 12v 0.6m Resun Magnetic Drive Water Pump 3120lph 4.1m