The Brita AquaView AVFR-200 is a replacement water filter cartridge for the Brita AquaView On Tap Filter model 42645, AVFF-100. Brita AVFR-200 AquaView filters are NSF / ANSI Standard 42 certified for reduction of Chlorine, Taste & Odor as well as Particulates (Class 1). The Brita AquaView filter 42647 is NSF / ANSI Standard 53 tested and certified for the reduction of lead, cysts, asbestos, and turbidity. Filter Life: 100 gallons or 4 months (this may vary depending on water conditions). Brita 42647 AVFR-200 AquaView Replacement Water Filter Contaminant Reduction:. NSF / ANSI Standard 42 certified for reduction of Chlorine, Taste & Odor as well as Particulates (Class 1). NSF/ANSI Standard No. 53 certified for the reduction of lead, cysts, asbestos, and turbidity.