The FS-TFC 75 GPD RO Membrane for RO System (FS TFC) fits most standard membrane housings and most RO systems. This is a high quality and widely used reverse osmosis membrane, used worldwide in reverse osmosis systems for domestic, commercial, water fed pole, aquarium and all other RO System due to its strength of filtering, durability and reliability. It has a 75G RO reverse osmosis membrane. The specifications: TFC-1812-75, the Desalting rate: about 96%, the capacity: 75 gallons (280 liters).