The Collar air pumps (Apump) are the smallest air pumps available on the market. With its respective low noise production, this are the ideal air pumps for small rooms and cabinets. For example, the air pumps are ideal voor usage in the living room or for small aquariums.
The Apump is available in 3 variants. The Apump mini for aquariums up to 40 liters, the Apump for aquariums up to 100 liters and the Apump maxi for aquariums up to 200 liters.