About This MATERIAL RELIABILITY: MS Reverse Osmosis (RO) membranes are made from 100% food-grade Thin Film Composite (TFC) material for ultimate purification performance with high permeate flow, tested by an independent third-party to meet NSF/ANSI 58 standards. HIGH REJECTION: 75 GPD RO membrane with a high 97% stabilized salt rejection rate. Hundreds of impurities are reduced by over 99% through the 0.0001-micron TFC membrane layer, including heavy metals (fluoride, calcium, magnesium, lead, colloids, chromium, and nitrates), organic materials, and harmful minerals, including other soluble salts found in water resources. UNIVERSAL MEMBRANE SIZE: Industry-standard element size 11.75 x 1.75-inch, designed to fit in standard 1812/2012 residential-style RO membrane housings utilizing a 2-inch internal diameter. Suitable for most Reverse Osmosis Water Filtration System. WIDE COMPATIBILITY: Reverse osmosis water filter replacement for standard membranes including but not limited to AXEON TF-1812-75, Dow Filmtec TW30-1812-75 (BW60-1812-75), FS-TFC TFC-1812-75, GE TFM-75, Geekpure GP-TW-1812-75G, MC7. LONG-LIFE: The membrane element, shipped dry in an original sealed package, has a life expectancy between 24 to 36 months, based on average feedwater quality, temperature, and incoming water pressure. ON-DEMAND SUPPORT: Assistance is available from our experts, ready to answer any of your questions about your RO membrane. Have a concern or question? American based customer support is available for the life of the product. Welcome to the Membrane Solutions Family. Overview Material : Polyamide Thin-Film Composite Product Dimensions : 1.75"D x 1.75"W x 11.75"H Item Weight : 2.65 Pounds External Testing Certification : NSF Product Benefits : Reduces TDS