This product is a set of 4 Brita pitcher filter refill packs, designed for use with Brita water pitchers. Each pack has a capacity of 40 gallons and utilizes carbon/charcoal filtration to remove chlorine taste and odor. Suitable for both commercial and household use, these BPA-free refill packs are sealed and made in Canada. The model number for this product is 0B03, making it compatible with Brita pitchers. With this set, you can ensure clean and fresh-tasting water for an extended period of time.