I just ordered some float valves, transformers, relay, and relay sockets from aquahub.com. If you call them up they will give you a coupon code for a better price when purchasing online. If you order is over $75 - free shipping. I opted to not use the i-float - more prone to failure from what I was reading. You have to use the tubing adapter to isolate the wiring. I got the horizontally mounted floats instead. The wiring is totally isolated from the water with a silicone seal. Just finished setting them up and they work great!