Reach for the Pentair Pentek NCP-BB Big Blue Carbon-Impregnated Polyester Sediment Taste & Odor Filter when it s time to change the filter in your 10 heavy duty whole house water filtration system. It s constructed from a carbon-impregnated non-cellulose media which produces a multitasking dual-purpose sediment and chlorine taste & odor filter. The 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 with extended service life.