Nu-Calgon markets and distributes a complete line of specialty chemical products for the air conditioning, refrigeration aftermarket as well as the plumbing, heating and food service/restaurant supply markets. These include coil cleaners, descalers, and refrigeration oils as well as products for water treatment, ice machine maintenance, and other specialty applications. These products are marketed to air conditioning, refrigeration and heating wholesalers as well as plumbing wholesalers, food service/restaurant suppliers and OEM's.