The Tier1 PD-25-934 is a 25-micron pleated sediment filter designed to capture dirt, sand, silt, rust, and other suspended particles from your whole house water supply. Its 25-micron rating strikes a balance between efficient sediment reduction and strong flow rate, making it ideal as a pre-filter for homes on municipal or well water systems.

The Tier1 PD-25-934 is a direct comparable replacement for the Pentek PD-25-934 pleated sediment cartridge. It measures approximately 9-3/4" in length and 2-5/8" in outer diameter, fitting standard Big Blue-style and other 10" whole house filter housings that accept this size cartridge. Always verify your housing dimensions before purchase to ensure a proper fit.

The Tier1 PD-25-934 pleated sediment filter typically lasts approximately 3 months under normal household usage, though actual life depends on your water quality and daily consumption. Homes with high sediment levels or well water may need more frequent replacement. One advantage of this pleated design is that it can sometimes be rinsed and reused to extend service life before final replacement.

The Tier1 PD-25-934 is manufactured from NSF-listed materials and is designed specifically for mechanical sediment reduction. It reduces visible particulates such as sand, silt, rust flakes, scale, and dirt down to 25 microns. It does not remove chlorine, taste, odor, or chemical contaminants — for those, pair it with a carbon-based whole house filter downstream.

Unlike spun or melt-blown sediment filters, the Tier1 PD-25-934 uses a pleated polyester media that provides a significantly larger surface area for dirt capture. This means higher dirt-holding capacity, longer filter life, and consistent flow rates. The pleated construction is also rinseable, allowing you to clean and reinstall the cartridge to maximize value before replacing it.