Penn-Plax Silent Air B11 Battery Aquarium Air Pump Blue

The Penn Plax Silent Air B11 Aquarium Air Pump is a must have for every fish tank. This air pump provides a constant supply of oxygen to your fish tank in case of an emergency power outage. The unit has a 5 foot electrical cord that will plug into any standard outlet and will sense when there is an interruption in power. This smart aquarium pump will automatically switch to battery backup and provide the much needed oxygen to fish. An extended power outage can be life threatening to most aquatic animal species. Air tubing and stone are included to make set up easy. Aquarium air pump uses 2D batteries which are not included and 110 volt electrical current. The Penn Plax Silent Air B11 Aquarium Air Pump is safe for both freshwater and marine environments up to 29 gallons. UL listed. Aquarium air pump runs on 2D batteries when it senses that electrical current is interrupted. It will switch from electric to battery operated automatically.|Pump will only operate when power is out and provides continuous aeration of your tank. Fish need a constant supply of oxygen for survival. An electrical power outage is life threatening.|Aquarium air pump is safe to use in tanks up to 29 gallons. Larger tanks would require a bigger unit or more than 1. Air pump uses 110 volt electrical current.