Whirl Master Internal Filter For Aquariums

The self-cleaning filter media provides constant movement and friction. Simply connect to an air pump and benefit from oxygen in the water and a strong biofilter. The high oxygen content and strong nitrification allow it to handle large amounts of ammonia and nitrite. The removable inlet sponge provides additional physical filtration. The package contains enough media, similar to K1 micro, that will float initially and begin to drop after a few days.

Size S: 
Dimensions: 18.9cm
Volume: 300 liters
incl. filter material

Size M:
Dimensions: 22.4cm
Volume: 600 liters
incl. filter material