Reduces: sediment, rust, scale, dirt, coarse sand, sand, fine sand, extra fine sand and silt Not recommended for use with non-treated well water supplies Cartridge life is up to 6 months or 24,000 gallons / Cartridge fits the HD-950A water filter 5 micron pleated polyester and cellulose cartridge Cartridge change reminder sticker included / Model# CP5-BBS, Weight: 0.52 Pounds, Manufacturer: Culligan