This air pump with 8 Outlets is 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. Low power consumption. 1-Year warranty. 12-watts, 25-liter per minute, 120-voltage. 400-GPH, maximum amperage is 0.1 and maximum decibels is 45. Measures 7-inch length by 5-1/2-inch width by 11-inch height. This product weighs is 6-pound.