To continuously enjoy cleaner better tasting drinking water remember to change your PUR Water Pitcher & Dispenser Replacement Filter (PPF900Z) every 2 months or after 40 gallons of use. The PUR Water Pitcher & Dispenser Replacement Filter reduces 2x more chemical & physical substances compared to Brita s leading pitcher filter* through its powerful 2-in-1 genuine PUR filtration technology that filters water fast. † It has also been rigorously tested and certified by NSF to reduce chlorine mercury copper zinc and other chemical & physical substances that can cause bad taste and odor in your drinking water. § Be cautious of off-brand water filters. They are not tested nor certified to filter the same as Genuine PUR Water Pitcher & Dispenser Replacement Filters in PUR and Beautiful by PUR systems. Genuine PUR water filters are the only water filters certified to reduce chemical & physical substances when used with your PUR or Beautiful by PUR water pitcher or dispenser system. At PUR we believe that everyone deserves cleaner better-tasting drinking water. That s why we ve been developing innovative superior water filtration technologies for over 35 years. Disclaimers: *Versus best-selling Brita® pitcher filter OB03. Brita® is a trademark of Brita LP. †Compared with PUR PLUS Pitcher Filter. ‡Based on comparing a year’s worth of bottled water (16.9 oz) to a PUR system and 5 PUR Pitcher refills. §Like other leading brands PUR does not filter microbes. As of 7/1/23 Brita® and ZeroWater® were not certified to filter microbes. Brita® is a trademark of Brita LP. ZeroWater® is a trademark of Zero Technologies LLC.