D-760：MINI HIGH EFFICIENCY PNEUMATIC FILTER
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Use air pump to create water current, in order to get the effect of filtering and to cultivate nitro bacteria.
- Increase the oxygen content in the water.
- Absorb various impurities.
- Cultivate nitrifying bacteria to stabilize water quality.
D-761：MINI AC MOTOR HIGH EFFICIENCY FILTER
- Use AC motor to create water current, in order to get the effect of filtering and to cultivate nitro bacteria.
- Increase the oxygen content in the water.
- Absorb various impurities.
- Cultivate nitrifying bacteria to stabilize water quality.
D-763：USB MOTOR HIGH EFFICIENCY FILTER
- Use USB motor to create water current, in order to get the effect of filtering and to cultivate nitro bacteria.
- Increase the oxygen content in the water.
- Absorb various impurities.
- Cultivate nitrifying bacteria to stabilize water quality.
- USB CHARGER NO INCLUDED