The Pentek P5-20 is a 5-micron spun polypropylene sediment filter. This micron rating makes it highly effective at capturing fine particulates such as sand, silt, rust, sediment, and scale from your whole house water supply, while still maintaining strong flow rates. The 20-inch Big Blue-compatible design provides a large surface area for extended dirt-holding capacity.

The Pentek P5-20 typically lasts 3 to 6 months depending on your household water usage and incoming sediment levels. For homes on well water or with heavy sediment loads, you may need to replace it closer to the 3-month mark. Households on municipal water with low sediment may get the full 6 months of service life. Regular replacement ensures optimal flow rate and prevents pressure drops across your whole house system.

The Pentek P5-20 is designed to fit standard 20" x 4.5" Big Blue-sized whole house filter housings, including Pentek Big Blue housings and other major-brand 20-inch heavy-duty housings with the same dimensions. Always confirm your housing's inner dimensions (20 inches long by approximately 4.5 inches in diameter) before ordering to ensure a proper fit and seal.

Yes, the Pentek P5-20 is manufactured from 100% pure polypropylene with no binders, adhesives, surfactants, or antistatic agents, making it suitable for a wide range of potable water and general filtration applications. The materials comply with FDA standards (Title 21 of the CFR) for food contact, ensuring safe use in residential drinking water systems when paired with a suitable housing.

The Pentek P5-20 supports flow rates up to approximately 10 GPM (gallons per minute) in a standard 20-inch Big Blue housing, making it ideal for whole house applications. It operates within a temperature range of 40°F to 125°F (4.4°C to 51.7°C) and a maximum pressure of 125 psi. Its true gradient density construction traps larger particles on the outside while capturing finer particles deeper inside, extending service life compared to standard sediment filters.