Aquarium Air Pumps, Whisper®
These classroom-safe, UL®-listed pumps have unsurpassed quality and reliability. They are specifically designed to produce smooth, quiet streams of air with sound dampening chambers, rubber feet, a suspended pump motor, and thick exterior walls. Because of new, more powerful diaphragms, the Whisper® Air Pumps are ideal for deeper water applications. The Whisper® 100 UL® has 2 outlets; all others have one.