Aquasana SmartFlow™ Reverse Osmosis Stage 2 Membrane Replacement - AQ-SFRO-S2

Reduces fluoride, nitrates, nitrites, arsenic, PFOA, PFOS, dissolved solids, and more. Genuine Aquasana replacement reverse osmosis membrane for SmartFlow™ Reverse Osmosis Water Filter Systems including the following models: AQ-SFRO-NF, AQ-SFRO-CHR, AQ-SFRO-BN, AQ-SFRO-ORB, and AQ-SFRO-MB. Not compatible with OptimH2O® systems. Simply twist out the used cartridge and replace it with an Aquasana replacement filter for continued contaminant removal. Use only certified, genuine Aquasana replacements. Lasts 1 year.