Check the listing for details. 50 GPD Reverse Osmosis RO Membrane Under Sink Water Filter Replacement 1-50 Pack. Color: Blue, Condition: New. Listed at 12.99 USD. Material Safety Membrane Solutions 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, providing safe-clean drinking water. Healthy Drinking 50 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 Fits most 10 Inch industry-standard RO systems. Model or Part Number Including but not limited to: APEC Water Systems RO-90, ROES-50, ROES-PH75, ROES-UV75, RO-Hi, RO-PERM Aquatic Life RO Buddie (Part No. 330084) Express Water RO10DX, RO10MX, RO10XC, RO5DX, RO5M, RO5X GE GXRM10RBL, GXRV10ABL, GXRV10ABL01 (Part No. FX12M) GeekPure RO5-PLUS, R05-MF H2O Splash RO Systems Home Master TMAFC, TMHP iSpring RCC1P, RCC1UP, RCC1UP-AK, RCC7, RCC7AK, RCC7AK-UV, RCC7D, RCC7D2, RCC7P, RCC7P-AK, RCC7U (Part No. MC5) Max Water Residential RO Systems PureGen ERO-550, EROUV-650 SimPure T1, T2, etc. Long-Life The membrane element, shipped dry in an original sealed package, has a life expectancy between 2 to 3 years, based on average feedwater quality, temperature, and incoming water pressure. Important Information It is recommended that systems using these elements rinse the elements for 24 hours, prior to first use, to meet NSF/ANSI 58 Standard. The first full tank of permeate must be discarded. Do not use this initial permeate for drinking water or food preparation. Keep elements moist at all times after initial wetting. To prevent biological growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution. Rinse out the preservative before use. The membrane shows some resistance to short-term attack by chlorine (hypochlorite). Continuous exposure, however, may damage the membrane and should be avoided. Package Includes 1 Pack: 1 x RO Membrane Filter 2 Pack: 2 x RO Membrane Filter 3 Pack: 3 x RO Membrane Filter 4 Pack: 4 x RO Membrane Filter 5 Pack: 5 x RO Membrane Filter 6 Pack: 6 x RO Membrane Filter 8 Pack: 8 x RO Membrane Filter 10 Pack: 10 x RO Membrane Filter 12 Pack: 12 x RO Membrane Filter 15 Pack: 15 x RO Membrane Filter 20 Pack: 20 x RO Membrane Filter 25 Pack: 25 x RO Membrane Filter 50 Pack: 50 x RO Membrane Filter