Trap more dirt. Clean less often.

Filtering with diatomaceous earth (D.E.) results not just in clean water, but water that really sparkles. That's because D.E. filters remove particles as small as 3–5 microns.

Even though particles smaller than 40 microns can't be seen with the naked eye, large quantities of these microscopic contaminants have a very noticeable effect on water clarity. And D.E. strips them away. D.E. filters not only filter better, they can make your life easier...if two goals are met. First, is to maximize the filtration area. Because more filter area means much longer periods between cleanings.
Second, is to design a system that requires the least amount of pumping power to achieve a needed flow rate. Because lower pumping power means lower utility costs.

That's why all Pentair D.E. filters feature curved D.E. grids to maximize surface area. It's why their internal design has been refined over decades to absolutely minimize flow restrictions. No wonder more than 2 million Pentair filters have been installed worldwide.