Tubing to use with this pump: 3/16" for manifold to Air Stones. 1/4" for connecting manifold to Air Pump. 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 multi-outlet divider (12) that can be individually opened or shut 112w 110 lpm Pressure >0.035 Mpa Weight: 11.5 lbs. Package Dimensions: 11.5L x 6.4W x 7.0H Units/case: 4 Rated Wattage: 112 Warranty: 1 Year Rated LPM: 110 Voltage: 120 Rated GPH: 1750 Rated Amperage: 1 Max. Decibels: 60