Best ATO for a decent price?

[spiraling]

I have had tunze (two styles) on three different tanks. They work great. You need to clean the float occasionally, or the sensor if you have that style.
My complaint is they last about 2 years then either the pump or the board go out. The board always looks good, but once replaced everything works again.

 

[bruinfoodie]

Just picked up the tunze nano and I love it, hopefully it will last years