NCP Series cartridges are constructed from a carbon impregnated non-cellulose media. They offer sediment-filtration, as well as taste, odor and chlorine taste and odor reduction in one cartridge. Unlike cellulose cartridges, NCP Series cartridges are resistant to bacterial attack allowing them to be used for municipal and non-chlorinated water applications. Pleats provide additional surface area for high dirt-loading capacity, while maintaining minimal pressure drop. This combination of a pleated polyester media and carbon filtration produces an outstanding filter cartridge with extended service life. NCP Series cartridges are excellent polishing filters, closed loop streams and are ideal for post reverse osmosis and well water applications. Micron Rating (nominal) Model Pressure Drop Filter Life 10 NCP-20 2psi @ 5 GPM 450 Gallons Materials of Construction: Filter Media Pleated Carbon-Impregnated Polyester End Caps Vinyl Plastisol Netting Polyethylene Core Polypropylene Temperature Rating 40F to 145F