【Protein Skimmer】Zensui Nano Skimmer Compact

I cannot say for certain as I had three at home, but I recall the usage period being about six months. *This was not continuous use, but rather intermittent use and storage.
There are no operational issues, but as can be seen in the images (though it may be difficult to tell), there are scratches inside the unit from cleaning. However, these do not affect its use. This is because I used tweezers to remove and clean the cellulose sponge.
*The instruction manual will be included as a download from the manufacturer's website.
*Tip: If you experience over-skimming, foam return, or water accumulating quickly in the cup, the height of the unit from the water surface has a greater impact than the strength adjustment.
*A set of collection cup and collection cup lid will be included as a bonus.

Product Name: Nano Skimmer Compact
Main Unit Dimensions: W73 x D73 x H295 mm
Rated Voltage: AC100V
Rated Frequency: 50/60Hz
Power Consumption: 4W (at maximum flow rate)
Maximum Compatible Water Volume: Up to 60L
For frameless aquariums only, glass thickness up to 10mm
Estimated monthly electricity cost: Approximately 73 yen *Calculated based on 24 hours/day, 30 days/month, and 1 kWh = 25 yen.
Purpose: Saltwater only