This high quality VIQUA ultraviolet sterilization unit is ideal for smaller sized residential installations, such as a smaller home or cottage The technology and care that goes into the development of our products is of the highest standards. The S5Q-PA system has been designed and tested against the most rigorous validation and testing methods in the industry. The 6 gallon per minute unit (S5Q-PA) has an onboard audible and visible on/off lamp failure alarm. Units are constructed with a stainless steel housing and have an easily replaceable high intensity UV sterilization lamp that delivers 30,000 mw/cm2 at 254 nm wavelength and a pure quartz lamp tube for peak UV dosage. All units are covered by a 7-year warranty on reaction chamber and 5 year pro-rated warranty on components other than probe and lamps.