The 650695-R D4+ Viqua UltraViolet Water Disinfection System adds modern UV sensor technology to the D4 Viqua UV System and is ideal for average to larger homes. UV light reduces microbial contaminants in the water, including bacteria, viruses, and protozoan cysts. During UV exposure, the DNA of the microorganisms is deactivated which makes them unable to reproduce. This treatment does not affect the taste, odor, or color of the water. Recommended flow rate for this system is 12 gallons per minute (45 lpm). Other features of this system include LED monitor, lamp replacement reminder, and stainless steel chamber material construction. Order the D4+ Viqua Home Plus UltraViolet Water Disinfection System today!