The Everydrop by Whirlpool Ice and Water Refrigerator Filter 4 EDR4RXD1 Single-Pack is a white charcoal water filter designed for use in Whirlpool refrigerators. It is compatible with models UKF8001 and 4396395, and has an NSF rating for quality assurance. This freestanding filter is easy to install and comes in a pack of 1, making it suitable for single-use in your refrigerator. With a compact size of 1 count, this filter does not require any power and is a convenient and reliable option for keeping your water clean and fresh. No box, FreeShipL48