Ista Rectangular Bio-Sponge Aquarium Filter (Large) Gravel Cleaners & Brushes Avoid running the pump with

Avoid running the pump with a restricted or blocked intake

the rear sump can be converted into a fully operational stand-alone in-cabinet sump arrangement for additional filtration capacity and equipment space

Controllable stream pump for aquariums up to 3000 L or 793 US gallons

avoid excessive tumbling that grinds the pellets

Water-tight screw-on lid with gasket helps reduce leaks during travel

Ista Rectangular Bio-Sponge Aquarium Filter (Large) Gravel Cleaners & Brushes Avoid running the pump withIsta Rectangular Bio Sponge Aquarium Filter (Large) High Capacity Air Driven Filtration with the Ista I 149 The Ista Rectangular Bio Sponge Aquarium Filter (Large) provides increased sponge capacity for aquariums requiring dependable mechanical and biological filtration without the strong intake of a motor driven internal filter. Its tall rectangular foam block captures suspended debris while providing extensive surface area for beneficial bacterial