Penn-Plax presents the impressively quiet line of Air-Pod Aquarium Air Pumps. The APP5 model quietly aerates and oxygenates fish tanks up to 75 gallons in size. It also comes standard with two outlets that provide a flow rate of 1900 cc/min which can be separately adjusted as needed. In addition to taking up little space in the house it’s safe for both freshwater and saltwater fish tanks. Shop Penn-Plax for All Your Pet’s Needs: Penn-Plax is a manufacturer and distributor of top quality pet supplies who specialize in creating excellent pet products for animals both great and small.