The most popular UV Light system in the world because of its reliability, ease of installation, innovative features, and quality components ^^ Two Year Replacement Lamp ^^ For use with AKTIV8 and APCO-RT Series ^^ Manufacturer Warranty ^^ Treats the air all the time and is virtually maintenance free (UV lamp replacement only) ^^ Ultraviolet radiation can cause adverse health effects, such as sunburn and eye irritation. Avoid direct exposure to skin and eyes when installing this product ^^ EPA Establishment # 75179-FL-2