ERH India 2 Pcs 9V Portable Air Pump for Inflating Air Mattresses, Balls, and More Electronic Components Electronic Hobby Kit
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Best for DIY Kit Fish farming for oxygen supply; using a mobile phone charging head or a 6-volt power supply, the noise is large, but the gas volume is large, and it can be used for oxygen fishing in the wild; mute, it is recommended to use DC 3 volts, which reduces the gas volume and also reduces the noise.s and Experiments
