Bests & Worsts Reviews from Amazon

This product was obviously designed by someone who has never worked on HVAC equipment. Yes, it will work...for a few months. BUT it will destroy your AC condenser unit in the process. AC condensing units (the outdoor unit) isn't designed to be wet 24/7. Even worse, tap water contains all sorts of impurities. Lime scale, chlorine, fluorine, and other minerals/deposits will be sprayed all over the cooling fins. Eventually they'll cake & plug up the fins, severely reducing efficiency. At the same time, it's going to rust out the unit. Any energy "savings" will be offset by having to repair / replace the outdoor unit more frequently. As others have mentioned, you also risk slugging the compressor with refrigerant if you cool the condensing coil too much. In these parts, replacing a compressor runs approx $1,500-2,000. Buyer beware.