Description Aquarium Oxygen Pump Filter Fish Tank Submersible Pump Internal Spray Bar   -Multi connector free switch -Strong sucker not easy to fall off -While filtering can increase the oxygen content -Increase water circulation、 filtration effect is more pronounced   Features: 1. Adjustable water flow. 2. Flexible blet、 easier for you to adjust the height. 3. Various fountain heads to meet your different requirement. 4. Various forms of outlet、 suitable for a variety of pipe diameter connection.   Maintenance: Clean the filter housing and filter sponge monthly、 otherwise the pump capacity will reduced.   How to use: - Can not work without  water.   - Suitable for fresh and marine water.   - The pump adapts to 0\u2103-35\u2103 water. - Cut the electricity before installing、 uninstalling and clean the pump. - Make sure the fact voltage is the same as the rated voltage on the pump with label before use.   Package Includes: 4 X Sucker 1 X Hosepipe 1 X Filter Pump 1 X User Manual 3 X Nozzle (please note the BKL-NZ07 only have 2 nozzle、 not have the transparent one)    Note: Follow your fish tank size to choose our products、 for more details、 please refer to our product information