Replacement Water Filter Cartridges for Brita, Pur, Mavea Filtration Pitcher, 3-Pack Consistent filtration performance over the life of the filter; uggest appoximately 10 Mins pre-soaking to achieve better result Micro-screen prevents black particle release into the pitcher system Silverized filter media to inhibit the growth of bacteria and maximize filter life The filter cartridges are compatible with Brita and Pur Pitcher. BPA free. No pre-soaking required to activate the filter This filter will not come with retail box. They will be in bulk packing. Each individual filter will be in a vacuum sealed bag to esure the quality.