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Submersible Aquarium Filter – OEM Supplier for 5–40 Gallon Tanks We are a factory-direct aquarium filter supplier offering OEM/ODM customization for bulk orders. This compact internal aquarium filter is designed for freshwater and saltwater tanks, combining 3-in-1 filtration, water circulation, and aeration. 3-in-1 Function: Mechanical filtration, oxygenation & water flow in one unit Adjustable Flow…