auto top off float switch

[scott711]

What is the best auto top off float switch to use that can be fully submersed in saltwater? I am going to be using it to connect to my breakout box of my apex controller.

 

thanks!

[ridetheducati]

http://autotopoff.com/

[armydoc]

I use the avast switch in both my RO and SW reservoirs to alert me when they are low. Never had a problem and no moving parts in the water.

[zygote2k]

I use the avast switch in both my RO and SW reservoirs to alert me when they are low. Never had a problem and no moving parts in the water.

+1.