Aqua Whisper Air Pump - Up To 60 Gallon - 2 Outlets - Quiet Operation - Double Diaphragm - Used For Aquarium and Hydroponic / Aquaponic Systems Quiet Operation - Double Diaphragm Technology 2 Air Outlets Powerful & Durable For Use In Up To A 60 Gallon Aquarium Reliable, Efficient, and Easy to Use