💦 Filter Your Way to Wellness! Made with sustainable coconut shell carbon, because the planet matters. Experience the refreshing taste of filtered water with BRITA's advanced MicroFlow Technology. Enjoy peace of mind knowing harmful metals are significantly reduced. Say goodbye to limescale buildup and extend the life of your appliances. Three cartridges provide a hassle-free 12-week supply for your hydration needs. MicroFlow Tech Active Carbon Pearls 12-week supply The Brita Maxtra Filter pack includes three refill cartridges designed with MicroFlow Technology to effectively reduce limescale, lead, and copper in your water. Each cartridge lasts up to four weeks, ensuring a total supply of 12 weeks. The active micro carbon pearls, derived from coconut shells, eliminate chlorine and other impurities, providing you with clean, great-tasting water while protecting your appliances.