Replacement Filter Info Sediment/Carbon Prefilter (AFC-WF3M-SED) - Replace every 6-12 months Micron Rating: 5 Microns and Change Frequency: 6 to 12 months Fits In These Systems Water Factory: SQC 1 HF, SQC 2 HF, SQC 3 HF, SQC 3QT HF, SQC 4, SQC 4 HF, SQC PRO Compatible Replacement Model Numbers: Neo-Pure: NP-3MM06 (formerly NP-SQC706), NP-3MM04 Water Factory Systems / 3M Purification: 47-557047CM, 47-55704G2 Swift Green: SGF-704 Essential Water & Air: F04G2 Shaklee BestWater: 61029-33 Omnipure: CSM5640 Payne: PSQC-3 Kleenwater: KWPSQC-3 Whirlpool: 4373503 AquaPure / 3M Purification: AP397E, 55582-03 Carbon Block Postfilter (AFC-WF3M-CB2) - Replace every 6-12 months Micron Rating: 0. 5 Microns and Change Frequency: 6 to 12 months Fits In These Systems Water Factory: SQC 1 HF, SQC 2 HF, SQC 3 HF, SQC 3QT HF, SQC 4, SQC 4 HF, SQC PRO Whirlpool: WSR4134Y Compatible Replacement Model Numbers: Neo-Pure: NP-SQC710, NP-3MM10 Water Factory Systems / 3M Purification: 47-55710CM, 47-55710G2, 47-9298G2 Swift Green: SGF-710 Essential Water & Air: F06G2 Omnipure: CSM5621 Kleenwater: KWPSQC-3 Whirlpool: 4373504 RO Membrane TFC 36 GPD (AFC-WF3M-M) - Replace every 24 months Micron Rating: 0. 1 Microns and Change Frequency: 24 months Fits In These Systems Water Factory: SQC 1 HF, SQC 2 HF, SQC 3 HF, SQC 3QT HF, SQC 4, SQC 4 HF, SQC PRO Whirlpool: WSR4134Y Compatible Replacement Model Numbers: Neo-Pure: NP-SQCM30, NP-3MM30 Water Factory Systems / 3M Purification: 66-4703G2, 66-4706CM, 66-4706G2 Swift Green: SGF-4706 Cuno / 3M: OWS33-RO, 33-RO, 5598718, 5597-18 Essential Water & Air: RPM1UC Omnipure: CSM5672 Kleenwater: KWPSQC-5 Whirlpool: 4373501 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. . 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.