I am thinking about upgrading the Saniclear 20 to the Saniclear 40. I cannot find any information on the difference between the Saniclear 20 and Saniclear 40 controller. I do know the Saniclear cell produces more chlorine. Both controllers look the exact same with the exact same connections and have the exact voltage and product the same current. If it helps the the product item number is 88-0 and the software revision is r8.80 which sounds like more of a generic after market controller. Can anyone with a saniclear 40 controller post what software revision they have? Also, is it possible to only upgrade the cell and not the controller?