Tetra Whisper Air Pump Range
Minimal noise, maximum air flow. The Whisper Air Pump’s dome shape actually flattens sound wave frequencies. In addition, each model features sound-dampening chambers designed specifically for that model. And the air pump's rubber feet and suspended motor prevent sound waves from reflecting off surfaces such as tables and shelves.
Delivery time good
Not very powerful.probably needed the 100 ltr for my 70 ltr
I really like how quiet it is. It's not quite a whisper but it's way quieter than alot of others.
Love the design of the air pumps. Plenty of pressure. Did think they would be quieter than the other ones I have. But we're still happy