The USWF Pleated Polyester Sediment Filter measures 20 inches in length by 4.5 inches in diameter (Big Blue size) and has a 5-micron rating. This nominal 5-micron rating means it captures sediment particles such as sand, silt, rust, dirt, and scale down to 5 microns in size. Its large-diameter Big Blue format is designed for whole-house filtration systems and delivers high flow rates without sacrificing filtration performance.

The USWF 5 Micron 20x4.5 Pleated Polyester Sediment Filter typically lasts 6 to 12 months, depending on your household water usage and incoming sediment levels. Homes with well water or high sediment content may need to replace it closer to the 6-month mark, while municipal water users often get the full 12 months. Because the filter is pleated, it offers a significantly larger surface area than standard spun or melt-blown sediment filters, extending its service life before pressure drop becomes noticeable.

Yes — one of the key advantages of the USWF Pleated Polyester Sediment Filter is that it is washable and reusable. The durable 100% polyester pleated media can be rinsed off with clean water to remove accumulated sediment, allowing you to reinstall it and extend its usable life. This makes it a more economical and eco-friendly option compared to single-use spun polypropylene sediment cartridges, though it should eventually be replaced when cleaning no longer restores flow.

The USWF 5 Micron 20x4.5 Pleated Polyester Sediment Filter fits all standard 20-inch Big Blue (BB) whole-house filter housings with a 4.5-inch inner diameter. This includes popular housings from US Water Filters, Pentek, Pentair, Big Blue, Aqua-Pure AP810/AP811-style, and other 20" x 4.5" compatible systems. It is commonly used as a pre-filter ahead of carbon blocks, UV systems, reverse osmosis units, or water softeners to protect them from sediment damage.

This filter is specifically engineered for mechanical sediment reduction. It removes suspended particles including sand, silt, rust flakes, dirt, scale, loose particulates, and other visible debris down to 5 microns. It does not reduce chlorine, taste, odor, lead, or chemical contaminants — for those, pair it with a carbon block or specialty filter. Its primary role is to protect downstream filtration equipment and plumbing by capturing particulate matter before it enters your home's water supply.