This commercial air pump with 6, 8, or 12 outlets is perfect to run several Waterfarms or multiple air stones at once. Electrical magnetic air compressor in a high-quality aluminum alloy case, wear and tear-resistant material for cylinder and piston. High pressure and high output, comes with a multi-outlet divider. Super silent with multi-level muffler, low power consumption. Special artificial rubber to keep a steady air flow output and pressure that can be adjusted freely.  1110gph