Fluval U4 Underwater Filter Bubble Magus Clear Glass Inflow and Outflow

Clear Glass Inflow and Outflow for Planted Aquariums

and we recommend at least 150 gallons or larger for a group

REEF-SPEC filtration

Soak the slide in the same type of aquarium or pond water it will be monitoring

Fluval U4 Underwater Filter Bubble Magus Clear Glass Inflow and OutflowFluval U4 Underwater Filter The Fluval U4 Underwater Filter is the largest Fluval U Series internal filter, designed for aquariums up to 65 US gallons 240 L with powerful 3 stage underwater filtration, adjustable 3 way flow control, and flexible vertical or horizontal placement. High Capacity U Series Internal Filtration The U4 provides the strongest flow and largest aquarium rating in the U Series, making it a useful primary filter for larger