I have a similar question. Starting the process of upgrading the pool hardware for a recently purchased house. Replacing an old Hayward pool pump with a Pentair Intelliflow, variable speed pump. With this, will add a controller that will link to the pool heater as well. What I am confused about is all the different remote options. I have very good wireless coverage throughout the house and the property and plan on redoing the whole pool in a couple years. so not interested in hard wiring a controller, yet. So if all i want is the ability to use the iphone/pad to control, for now, is the right one Pentair Easytouch PL4 - Single Body - w/ScreenLogic Wireless Bundle - Part # 522353.