【 Lifespan: 1000 Gallons or 1 Year 】With regular cleaning, it will last 1 year with daily use or to treat 1000 gallons of water. 【 Material 】Ceramic, no chemical synthetic materials, with excellent resistance to high temperature and high pressure. The base is made of BPA-free plastic. 【Usage】 All Water Systems: This replacement filter is compatible with all water filtration systems both countertop and water cooler models. It can also be used with household buckets or other water faucets to DIY a water filtration system, emergency water filtration system. 【 Lifespan: 1000 Gallons or 1 Year 】With regular cleaning, it will last 1 year with daily use or to treat 1000 gallons of water. Ceramic Dome Filter Dome filters are made of high-density ceramic with diatomic properties. The surface of the dome is made up of millions of pores ranging in diameter from 0.15 to 0.5 microns, with most materials being 0.5 to 1.0 microns in size. When contaminated, dirty tap water flows through the holes in