Mainframe size:40*47*13.5cm Electrical power: 220V/50Hz Water outflow:7.8L/H Working pressure: 0.1-0.4MPa Environment temperature: 5-40 centigrade( best between 15 & 35 centigrade) Auto- flush, with one water tank of 3.2 gallon Auto-control LED 4 stages: PP,GAC, RO,GAC Mainframe housing with ABS material 450*180*580mm/1pc, 280*270*375mm/tank, 370pcs/20'GP