The Pentek NCP-20 is a 20-micron nominal pleated cellulose polyester filter cartridge. This micron rating makes it highly effective at reducing sediment, silt, sand, rust particles, and scale from your whole house water supply. The pleated design provides a larger surface area compared to standard spun or melt-blown filters, which translates to higher dirt-holding capacity and longer service life in your whole house filtration system.

The Pentek NCP-20 typically lasts 3 to 6 months depending on your household water usage and incoming water quality. Homes with higher sediment levels or well water may need more frequent changes, while municipal water users with cleaner input may extend the service life closer to 6 months. Because the NCP-20 is a pleated, reusable-style cartridge, it can often be rinsed once or twice to extend its usable life before final replacement.

The Pentek NCP-20 measures approximately 9-3/4" in length and 2-5/8" in outer diameter, making it compatible with standard 10-inch Big Blue-style and slim-line whole house filter housings that accept 2.5" x 9.75" cartridges. It is designed to fit Pentek, Pentair, and most other standard-size housings, providing a flexible sediment filtration solution for point-of-entry whole house systems.

The NCP-20 is specifically engineered for sediment reduction. It effectively captures dirt, sand, silt, rust flakes, scale particles, and other suspended solids down to 20 microns. It does not remove chlorine, taste, odor, or chemical contaminants — for those, it is commonly paired with a carbon filter stage. The cellulose-polyester blend media is rated for use with both hot and cold water applications up to 125°F.

Yes, one of the key advantages of the Pentek NCP-20 is that its pleated design allows it to be rinsed and reused a limited number of times before final replacement. To clean it, remove the cartridge from the housing, rinse it with clean water from the outside in to dislodge trapped sediment, and reinstall. Once rinsing no longer restores adequate flow or the pleats appear discolored and clogged, replace the cartridge to maintain proper water pressure throughout your home.