The AO Smith AO-WH-PREL-RP water filter cartridge is a 4.5″x10″ replacement filter specifically designed for removing sediment from water. This filter is compatible with the WHKF-DWBB model and comes in a pack of 1. With a diameter of 4-3/8″ and a length of 9-3/4″, this cartridge is perfect for keeping your water clean and safe for consumption. Made by a trusted brand like AO Smith, you can rely on this filter to effectively remove contaminants and ensure you have fresh, pure water in your home.