Membrane Aqua filter TFC 75 GPD The membrane of the reverse osmosis Aquafilter removes from the water the contaminants that may be present in the water, such as lead, arsenic, barium, chromium, mercury, sodium, cadmium, fluoride, nitrite, nitrate and selenium . TFC replacement membranes have been tested and certified according to the requirements of the International Organization NSF and Water Quality Association for their suitability in domestic drinking water filtration systems. With Production option: 190 liters / day (50gal/day) 284 liters / day (75gal/day) 379 liters / day (100gal/day) Model No. ABCD INCHES CM INCHES CM INCHES CM INCHES CM TFC-50F 11.75 29.8 10 25.4 1.75 4.4 1.9 4.82 TFC-75F 11.75 29.8 10 25.4 1.75 4.4 1.9 4.82 TFC -00F 11.75 29.8 10 25.4 1.75 4.4 1.9 4.82 TFC -25f 11.75 4.4 1.9 4.82 TFC membranes perform at a pressure environment of 60 psi. Compatible with all home and aquarium Reverse Osmosis systems on the market. TFC replacement membranes have been tested and certified according to the requirements of the International Organization NSF and Water Quality Association for their suitability in domestic drinking water filtration systems. In addition they are certified according to NSF/ANSI Standard 58. Certified by: