The Pentek BP-420-50 is a polypropylene bag filter with a 50-micron nominal rating. This rating makes it ideal for removing larger sediment particles such as sand, silt, rust flakes, and scale from water, process fluids, and industrial applications. The 50-micron rating offers a balance of high dirt-holding capacity and strong flow rates, making it well-suited for pre-filtration before finer filters.

The Pentek BP-420-50 measures 7 inches in diameter by 32 inches in length (Size #2 bag), with a maximum flow rate of up to 220 GPM (gallons per minute) when used in a compatible Pentek bag filter housing. Its large surface area provides excellent dirt-holding capacity, allowing for extended service life in high-flow commercial and industrial filtration systems.

Replacement intervals for the Pentek BP-420-50 depend on your water quality, sediment load, and flow demand. In typical applications, the filter should be replaced when the pressure differential across the housing reaches 15–25 PSI, or approximately every 1–3 months. For heavy sediment conditions, more frequent replacement may be needed. Monitoring pressure gauges is the most accurate method to determine change-out timing.

The Pentek BP-420-50 is engineered for commercial and industrial applications including well water pre-filtration, process water, coolant filtration, wastewater treatment, chemical processing, and food and beverage production. Its 100% polypropylene construction is chemically compatible with a wide range of fluids and resists degradation, making it a reliable choice for demanding filtration environments.

The Pentek BP-420-50 is a Size #2 bag filter designed to fit standard #2-sized bag filter housings, including Pentek BPH and compatible industrial housings measuring 7" x 32". Always confirm that your housing accepts a Size #2 bag before installation. Using the correct size ensures proper sealing and prevents bypass, which is critical for maintaining filtration efficiency.