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This ultra-quiet mini brusess water pump is designed for efficient water circulation in various applications, suitable for use in water or other particle-free, impurity-free liquids (not for viscous or acid-base liquids). Its compact size and powerful performance make it ideal for aquariums, fountains, and circulating systems.

Features:
Ultra-quiet operation: Noise level is less than 37dB, ensuring a peaceful environment.
High performance: Delivers a maximum flow rate of 300L/H and a maximum lift of 300cm (9.84ft), meeting your circulation needs effectively.
Waterproof design: With IP68 waterproof cl, it can be ly used in submersible applications.
Lack of water protection: Equipped with lack of water protection to prevent damage when water is insufficient.
Durable material: Made of PC+ABS, ensuring long-term use and resistance to liquid corrosion.
Wide temperature tolerance: Can handle liquid temperatures up to 100°C; note that in high-temperature environments (100°C), it must be installed using a non-diving method.
Convenient power supply: USB DC5V rated voltage, easy to connect to various power sources.
Adequate cable length: 150cm (4.92ft) cable provides flexibility in installation.

Specification:
Model: QR50B
Max. Power: 4.8W
Max. Flow Quantity: 300L/H
Max. Lift: 300cm/9.84ft
Max. t: 960mA
Rated Voltage: USB DC5V
Noise: Less than 37dB
Lack of Water Protection: Yes
Outer Dia. of Inlet/Outlet: 8.5mm/0.33in
Inner Dia. of Inlet/Outlet: 6mm/0.24in
Waterproof Cl: IP68
Material: PC+ABS
Max. Liquid Temperature: 100°C
Cable Length: 150cm/4.92ft
Product Size: 59.5*49*42mm/2.34*1.9*1.65in
Product Weight: 90g/3.18oz
Package Size: 6.5*6*5.4cm/2.56*2.36*2.12in
Package Weight: 104g/3.68oz

Package List:
1* DC5V Brusess Pump
1* Filter
1* User Manual(English)

Please Notes:
1. DO NOT dry burn the pump, otherwise it would be damaged.
2. on-off the power repeatedly for several times to remove the air in the pump impeller and the pipe.
3. When the pump is used in high temperature environment(100°C), it can only be installed with non-diving method.
4. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
5. Please allow slight manual measurement deviation for the data.