12V DC 550 Motor Mini Air Pump with 4mm Outlet
Part number: 12V550Pumps, Solenoids & Actuators
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Prices updated: 13 Oct 2026
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About this product
A miniature 12V DC air pump built around a 550-size motor, with a large air volume and low noise. It is used for fish tank aeration and DIY air projects. It has a 4 mm outlet and 25 cm of wiring, where the red wire is positive. The pump measures 11 x 3.5 x 3.5 cm.
Specifications
- Voltage
- 12 V DC
- Motor
- 550 type
- Dimensions
- 11 x 3.5 x 3.5 cm
- Motor diameter
- 3.5 cm
- Outlet diameter
- 4 mm
- Wiring length
- 25 cm (red wire positive)
Frequently asked questions
How do I wire this pump?
The listing says the red wire is positive. Connect it to +12V DC and the other wire to the negative (0V) side of the supply.
Which tubing can I use with the 4 mm outlet?
Use tubing that fits the 4 mm outlet diameter so the connection stays secure. The pump is described for fish tank ventilation and DIY air projects.
