Key features of DB series pumps: strong and constant flow, low noise level, efficient power consumption, long lifespan, built in thermostat cuts off the power when temperature goes too high. Specifications of DBM40 air pump: Voltage (VAC): 220 ~ 240 Rated pressure: 0.13 kg/cm2, 1.85 PSI Airflow: 50 LPM, 1.76 cfm Operating range: 0.05 to 0.2 kg/cm2 (0.71 to 2.84 PSI) Current (A): 0.46 Power (W): 43 Suitable applications of DB series air pump: Aeration for wastewater/sewage water treatment Septic tanks Air/water purifiers Atmosphere analysis devices Aquatic oxygenation Gardening market Fish farms Fish ponds and lakes Hydroponic systems Live fish transporting Packing equipment Fuel cell systems Bubble bath Electro-mechanical systems Scent equipment