Water coming through your roof is very expensive, why? Filters are not enough to keep a clean evaporator coil, without a ultraviolet light your evaporator coil will grow microscopic organisms. This could lead to spores, fungus and eventually more damaging organisms like mold. A clogged AC drain line is the result of these organisms. Water stoppage or back up is the result which can lead to a damaged ceiling. A ceiling saver will prevent this problem by shutting off your system in the event of excessive water back-up because of a clogged drain line. A AquaGuard ceiling saver is the next best thing if you don't have a ultraviolet light in your system. Don't pay $2000 to $3000 to fix your ceiling, be prepared. Get AquaGuard or UV protection today!