I'm selling these because I switched to a water server and no longer need them. I used to use them with a BRITA system. Includes: * 6 water filter cartridges * Expiration dates vary. * Details are below, but please also refer to the images. * 1 cartridge expiring April 3, 2026 * 4 cartridges expiring December 20, 2026 * 1 cartridge expiring May 20, 2027 * 4 water filters * Can be used with BRITA water bottles.