The product is a set of three water filter cartridges by Express Water. These cartridges are designed for removing rust, dirt, silt, sand, and sediment from the water, making them suitable for household use. The filtration method is carbon/charcoal, which effectively eliminates contaminants and ensures clean, fresh water for your kitchen. The cartridges are white in color and come in a pack of three, providing a durable and reliable solution for your water filtration needs.