United Filters 4.5" x 20" 1 Micron Pleated Polyester BB Filter CartridgePleated polyester cartridges are built for ultra fine filtration applications. This 1 micron Big Blue cartridge captures very fine particles with precision. It ensures superior water clarity and protects sensitive systems.

This Hurricane housing is engineered for high flow filtration up to 150 GPM

This 1 micron Big Blue cartridge effectively captures very fine particles

Suitable for critical filtration needs

It delivers consistent filtration and reliable flow performance

It offers excellent dirt holding capacity and consistent flow

The increased surface area ensures efficient filtration and longer operational life compared to standard cartridges

Designed without a pressure relief valve for specific system requirements

Designed for durability in demanding environments

and general water filtration applications

It provides reliable and efficient filtration for commercial and industrial applications

Built for durability and easy installation

Suitable for commercial and industrial filtration systems requiring consistent performance