Fluval U3 Underwater Filter Bring powerful 3-stage filtration and circulation to hard-to-filter places like aquariums, terrariums and turtle tanks with the Fluval U Series Underwater Filter. This completely submersible filter features a unique 3-way flow control spray bar that allows you to create water movement anywhere you need it. Efficient Fluval design uses a handy flip-top to make media changing simple and fast. 3 Stage Filtration System: 1. Foam Pad 2. Poly/Carbon Cartridge 3. BIOMAX Nodes
