The PUR PLUS Water Pitcher & Dispenser Replacement Filter reduces 3x more chemical & physical substances compared to Brita's leading pitcher filter* through its powerful 3-in-1 genuine PUR filtration technology. These easy-to-change replacement water filter cartridges are WQA certified to reduce lead. This PUR pitcher water filter replacement has also been rigorously tested and certified by NSF to reduce microplastics, chlorine, mercury, copper, zinc and other chemical & physical substances that can cause bad taste and odor in your drinking water. Did you also know that the PUR PLUS pitcher and dispenser replacement filter can help save you up to $75 per month compared to bottled water.** To continuously enjoy, cleaner, better tasting drinking water, remember to change your PUR PLUS Water Pitcher & Dispenser Replacement Filter (PPF951K(TM)) every 2 months or after 40 gallons of use. Be cautious of 'off-brand' water filters. They are not tested nor certified to filter the same as Genuine PUR PLUS Water Pitcher & Dispenser Replacement Filters in PUR and Beautiful by PUR systems. Genuine PUR PLUS water filters are the only water filters certified to reduce chemical & physical substances when used with your PUR PLUS or Beautiful by PUR 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. **Based on comparing a year's worth of bottled water (16.9 oz) to a 6 PUR pitcher filters. Based on Nielsen US Scantrak sales.