The 3 Pack Sub-Zero 4204490 Refrigerator Water Filter CF24 Replacement by Crystala is designed for Sub-Zero refrigerators. Made of durable plastic, this white filter is compatible with the Sub Zero model #4204490. It removes chlorine taste and odor, ensuring clean and fresh water for your convenience. Each pack includes 3 units, providing you with a steady supply of high-quality water filters for your Sub-Zero refrigerator. Made in China, this refrigerator filter is a reliable and efficient solution for maintaining your appliance’s water purification system.