100-Pack of 20 Micron Pleated Cartridge Filters keeps your water clean and filters out dirt, sweat, hair, and debris. We recommend changing 2-4 weeks *depending on frequency of use, volume and water chemistry. *Our filters are designed specifically for use with Inergize Health Chillers. Other filters may not fit properly and cause damage to the product, and will void the warranty. Compatible with: The Inergize Pro Chiller Not compatible with: The Inergize Eco Chiller