The Allnice 40W Submersible Pump is great for those who need a bit more power for their fountain but also for those who want to create some movement in their large aquarium or outdoor pond, but by purchasing a hose (sold separately), it works as a great way to do water changes.
The tank is about 5-inches w and 5.5 inches and it comes with three types of valves, depending on what kind of outward flow you want and you can control flow through the lever. The pump is also quiet and it has non-slip rubber pads. The power cord is about 5.9 ft
Again, my primary use is for water changes and at under $26 (my review is for the 40W, you can purchase 60W, 85W and 100W).
The Allnice 40W-100W Submersible Pump works well, but it no doubt can be utilized for a variety of uses, fountain, pond, large aquarium and more!