💦 Drink Pure, Live Pure! Seamlessly integrates with Purewell and other gravity water filter systems. Enjoy up to 6000 gallons of fresh drinking water before needing a replacement. Experience unparalleled purification with our 3-stage filtration system. Achieve crystal-clear water with a pore size of just 0.01 microns. Trust in our NSF/ANSI 372 certification for safe and effective filtration. 6000 Gallons Lifespan 3-Stage Filtration 0.01 Micron Pore Size The PurewellPB-2 Black Purification Elements are high-performance replacement filters designed for the PB-2 and BB8-2 purification systems. Featuring a 3-stage filtration process that includes natural coconut activated carbon, silver ions, and a Hollow Fiber UF Membrane, these filters effectively reduce impurities, enhance taste, and ensure safe drinking water. With a remarkable pore size of 0.01 microns, they filter out 99.99% of contaminants while maintaining an optimal flow rate of 4 gallons per hour. Each filter can purify up to 3000 gallons, making them a reliable choice for health-conscious consumers.