Amazon is offering the Tetra Whisper Air Pump for tanks up to 40-gallons for $6.59 Prime shipped. That’s nearly $6 off the regular price, more than $8 less than Petsmart and an Amazon all-time low. Rated 4.2/5 stars by Amazon shoppers. 

  • For Use in Aquariums Up to 40-Gallon
  • Minmal noise with maximum air flow
  • Has sound damping chambers with a dome shape to flatten sound wave frequencies

Tetra Whisper Air Pumps keep your aquarium oxygen levels high, helping keep your fish healthy. And with seven different sized pumps, there is sure to be one that is perfect for your aquarium. This line of air pumps has a unique dome shape and rubber feet. This flattens sound wave frequencies and helps prevent them from reflecting off of surfaces such as tables and shelves, allowing your pump to produce minimal noise. Whisper Air Pumps can be used in deep tanks (up to 8 feet deep), and have enough strength to power long decorator air stones, multiple air stones in one or more tanks, and protein skimmers for salt water aquariums. Every Tetra pump also comes with a lifetime limited warranty.

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