The USWF Melt Blown Sediment Filter has a 10-micron nominal rating, meaning it effectively captures sediment particles as small as 10 microns in size. This makes it ideal for reducing dirt, sand, silt, rust flakes, and other suspended solids from your water supply. The 10-micron rating strikes a balance between strong particulate filtration and good flow rate, making it perfect for whole-house pre-filtration or as a sediment pre-filter before finer carbon or RO filters.

This USWF filter measures 20 inches in length by 2.5 inches in diameter (20" x 2.5"), making it a standard slim-line size that fits most 20-inch Big Blue-compatible slim housings and standard 20" filter housings. It is compatible with a wide range of whole-house and under-sink filtration systems, including popular housings from Pentek, Culligan, American Plumber, and other standard 20" x 2.5" systems that accept DOE (double open end) cartridges.

The USWF Melt Blown Sediment Filter typically lasts 3 to 6 months, depending on your water quality and usage. Households with higher sediment levels, well water, or heavy daily water use may need to replace the filter closer to the 3-month mark, while homes with cleaner municipal water can often go the full 6 months. A noticeable drop in water pressure or visible discoloration of the cartridge indicates it's time for replacement.

This USWF cartridge is manufactured using 100% pure polypropylene melt blown fibers, which are thermally bonded without the use of adhesives, binders, or surfactants. The melt blown process creates a true gradient density structure—coarser fibers on the outside and finer fibers toward the core—allowing the filter to capture larger particles first and progressively finer sediment deeper inside. This design maximizes dirt-holding capacity, extends filter life, and ensures consistent flow rates throughout its service life.

Yes, the USWF 10 Micron Melt Blown Sediment Filter is constructed from FDA-compliant, food-grade polypropylene materials, making it safe for use in potable (drinking) water applications. It contains no adhesives, binders, or chemical additives that could leach into your water. While this cartridge is designed specifically for sediment reduction (not chemical or taste/odor reduction), it serves as an excellent pre-filter to protect and extend the life of downstream carbon filters, RO membranes, and UV systems.