The CT-10x5 is a dual gradient double pleated filter designed for extended life and use, with a filtration level of 5 microns (nominal). Like other Orange Series cartridges, this filter features two distinct pleated layers, a 10 micron outer layer and a 5 micron inner layer. This structure, combined with a surface area of approximately 100 square feet, provides a greatly improved service life while achieving high flow rates with low pressure drop. The CT-10x5 is recommended for flow rates up to 50 GPM. See the pressure drop vs. flow rate chart for expected pressure loss at various flow rates.