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From the Manufacturer

The Watts Premier Pleated Sediment Water Filter Cartridge provides exceptional dirt holding capacity for extended filter performance. Constructed of pleated polyester provides a durable high surface area that gives the cartridge impressive solids-holding capacity. This cartridge is a single membrane which allows the user to remove the filter and clean in order to extend the life and efficiency of the filter. Filter is a standard 10-Inch big blue filter having universal dimension of 4.5-Inches by 10-Inches, making it compatible with all other standard big blue filter housing manufacturers. Filter reduces sand, silt, sediment, rust and dirt down to 20 microns this filter is suited for residential, commercial and industrial applications.

Watts Premier 202134 20-Micron Full Flow Pleated Sediment Replacement Cartridge - B005ILIOYK