Water Genius Dissolvedoxygen Bio Filter Med SKU: PB02 Category: Pumps Filters and Undergravels Related products Resun Magi Jet Filter 1000lph 1.95m Resun Low Volt. Pump 550lph 12v 1.3m Resun Low Volt. Pump 250lph 12v 0.5m Fluval U3 Internal Filter For 90 150l Aqu.