Tetra Cool Power Box CPX-75 Aquarium Cooler

Thank you for looking.

I received this item from someone else and used it for about a week in saltwater (it worked without any problems).
I have no plans to use it again, so I am offering it to someone who can make use of it.
*Although I have flushed it with tap water, please clean it again yourself before use.
*I was told by the previous owner that it was hardly used (purchase date and specific usage period are unknown).
*No instruction manual. The accessories are all that are shown in the images (water supply/drain pipes, hose clamp).
*There are scratches on the top and sides. Please check the images for the condition.
*I would like to sell this to someone who knows how to use it. Please check the official website etc. for usage instructions.
*Packing materials and cardboard for shipping will be reused. Please understand that as this is amateur packaging, it may not be neat.