Replacement Filter Info 1. Sediment/Carbon Prefilter (AFC-WF-SED) - Replace every 6-12 months Micron Rating: 5 Microns and Change Frequency: 6 to 12 months Fits In These Systems 3MRO401 and 3MRO501 Compatible Replaces Part Numbers: 47-55702G2, 47-55702CM and 47-9288G2 2. Pre- or Postfilter (AFC-WF-300-CB2) - Replace every 6-12 months Micron Rating: 5 Microns and Change Frequency: 6 to 12 months Fits In These Systems 3MRO401 and 3MRO501, Water Factory SQC4 Compatible Replaces Part Numbers: 47-55711G2 and 47-9299G2 3. Carbon Block Postfilter (AFC-WF-200-CB1) - Replace every 6-12 months Micron Rating: 0. 5 Microns and Change Frequency: 6 to 12 months Fits In These Systems 3MRO401 and 3MRO501 Compatible Replaces Part Numbers: 3MROP316, 47-55707CM, 47-55707G2, 47-55708G2, 47-55712G2, 47-9295G2, and 47-9296G2 4. RO Membrane TFC 36 GPD (AFC-WF-M) - Replace every 24 months Micron Rating: 0. 1 Microns and Change Frequency: 24 months Fits In These Systems 3MRO301, 3MRO401, and 3MRO501 Compatible Replaces Part Numbers: 66-8706G2 and 66-4706G2 Disclaimer: Do not use this filter with water that is Hot. Do not use the filter with water that is microbiologically unsafe or of unknown quantity. Do not use this filter longer than its intended 12 Month use. Doing so may result in leaks and water damage. 3M® is a registered trademark of 3M Company. Aqua-Pure® is a registered trademark of 3M Company. 3M®, and Aqua-Pure® are registered trademarks of their respective holders. American Filter Company and this website are not affiliated with 3M®, and Aqua-Pure®. This product is not affiliated with or authorized by 3M®, and Aqua-Pure®, or EveryDrop. Install Instructions: 1. Turn off Water Supply. 2. Remove existing filter. 3. Install new filter in head and turn till locked. 4. Turn on Water Supply. 5. Check for leaks. 6. Flush system for 3-5 Minutes.