1 Buy = 2 AAPA70L Commercial Aquarium Water Air Pumps! The **AAPA70L** is perfect to run several or multiple air stones at once. Electrical magnetic air compressor in a high quality aluminum alloy case, wear and tear material for cylinder and piston High pressure and high output. Comes with multi outlet divider (6, 8, and 12) that can be individually opened or shut. Get the **AAPA70L** Commercial Pond Air Pump at a great price.