United Filters 4.5" x 20" 50 Micron Pleated Polyester BB Filter CartridgePleated polyester cartridges offer reliable filtration for medium to coarse sediment. This 50 micron Big Blue cartridge effectively captures larger particles. It supports extended service life and consistent system performance.

Its layered construction provides efficient filtration and long-lasting performance in various water treatment systems

5 inch connection for system compatibility

This 20 inch Big Blue HFPP housing is designed for high flow filtration with a 1

It features 2 inch connections for easy integration

This 20 inch valve-in-head filter housing features a blue and black design with a 3/4 inch port

This 921 series wrapped filter cartridge ensures precise removal of very fine contaminants

Designed for fine filtration in compact systems

Designed for longer service life and consistent performance

Hytrex GX cartridges are designed for depth filtration and high dirt-holding capacity

Reliable filtration solution

Designed for durability and extended service life

Its durable design ensures reliable performance and extended service life