EASY CLEAN - Easy to clean, just rinse and squeeze in used aquarium water. Never use tap water
HIGH VOLUME FLOW - One inch diameter lift tube allows for high volume water flow and allows use of power head without adapters
PROPRIETARY SPONGE FOAM - Made from Proprietary Patented Sponge Foam for the highest mechanical debris capacity and bio capacity
TRAPS WASTE - The Hydro-Sponge traps waste particles, mechanically cleaning the water without trapping baby fish
VERTICAL OR HORIZONTAL - Can be used in the vertical or horizontal position. Heavier base with a raised bottom