Pentair 4.5" x 10" Big Blue Empty Cartridge ClearPentair 4. 5" x 10" Big Blue Empty Cartridge Clear designed for efficient water filtration.

EASY REPLACEMENT - Designed to fit all standard filter housings

Built with high quality calcite and corosex media

This 1 micron pleated polyester filter is ideal for removing very fine particles

Durable and efficient design

The inline design allows easy installation in commercial and residential water systems

Purtrex PX cartridges are designed as depth filters for consistent and efficient filtration

Removes medium-sized particles effectively

Designed for fine filtration in compact systems

Removes fine particles effectively to improve water clarity

5" x 10" nitrate removal inline water filter is designed to reduce nitrate levels in water and improve safety

Provides steady flow rates

The compact inline structure allows easy installation and replacement