I used these through a Wisconsin winter they did a great job of keep my little pond open enough to off gas. My fish survived and the aerator is still pumping!

Worked perfect for my pond, very happy with this product :)

I was so happy to find this Aerator on wayfair. If you have fish you understand how important pond management is. Great product!

Had to add waits to the aerator and it’s good so far !

Works well, but the air stones are just too small and light.. I purchased extra large air stones for this unit and it works great.. The air stone discs that came with it are just too light and float. Even with some stones placed on top to anchor down. Once the unit was plugged in the air moved the stones and up to the top they came.