Voltage: 220V ± 22V 50Hz± 1Hz Max negative pressure: 0.09MPa Noise: 70dB (A) Power: 120 VA Pumping rate: 20L/min Continuous Working Time: 0-30 min Rest Time : 30min Bottle volume: 2500 ml glass bottle, 2 PCS Package: 1PC/carton Box Size: 47.5*41.5*92.5cm Net Weight: 16KGS Gross Weight: 18.5 KGS