We designed the 3M™ Water Filtration Products 9000 Series Retrofit Filter Cartridges as an economical way to provide the benefits of 3M Water Filtration Products in select competitive systems without incurring additional capital expense. Our line of 9000 Series cartridges offer a choice of medias and micron ratings, as well as optional integrated scale inhibition that provides solutions for varying water conditions. They do not require activation prior to replacement and allow the operator to change the cartridge quickly.*3M™ Water Filtration Product 9000 Series Retrofit Filter Cartridges are NSF certified (CFS9110, CFS9112, CFS9812X, CFS9720, CFS9110-S, CFS9112-S, CFS9812X-S, CFS9710-S, CFS9720-S, CFS9112EL, CFS9112EL-CL, CFS9812ELX, CFS9112EL-S, and CFS9812ELX-S). Visit www.nsf.org for specific claims associated with each product.**Surfaces that are in contact with water are FDA CFR-21 Compliant.An industry first, our innovative Sanitary Quick Change (SQC) design, allows for fast and easy cartridge change-outs in seconds without having to contact the filter media or the need for a filter wrench. Our High Flow SQC is one of the industry's most advanced water filtration system features.9000 Series Best FeaturesFilter cartridges are double o-ring seal typeSystem maximum operating pressure of 125 psi (862 kPa) and operating temperature of 100°F (38°C)Some models incorporate carbon block media and scale inhibitorCartridge body is constructed from high-impact glass-filled polypropyleneCartridges are sanitary in design, requiring no contact with the filter media during cartridge change-outMicron ratings from 0.5. to 5 nominalFilter cartridges require no pre-activation