Boyu Air Pump S 520:
This S series silent air pump operates at the voltage rate of AC230/110V at 50/60Hz and consumes a power of 2.8 W. It has pressure range of 0.01MPa and provides 4L/min output. High polymer composite rubber air pump for long working life and reliability. Low noise, generous air capacity, does not require oil lubrication. Reliable function, low price.