The 4 Pack Howsyki Fridge Filter includes filters with models such as EDR1RXD1, W10295370A, and FILTER 1, compatible with brands like GE, Samsung, and Whirlpool. Made with coconut carbon material, these filters use a carbon/charcoal filtration method to provide clean and fresh water for both commercial and household use. With a capacity of 200 gallons and a unit quantity of 4, these white filters are designed to last and ensure a steady supply of clean water for your refrigerator.