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Pool DE Filters

Diatomaceous earth, or DE filters, incorporates the exoskeletons of tiny diatoms to efficiently filter your swimming pool water. The exoskeletons coat the filter’s grid housing and act as a sieve to remove particulate. Ultimately, DE filters have the lowest micron rating out of the three different types of filters at about two to five microns, and are known as “water polishers.” Diatomaceous earth filters are typically the most popular choice in swimming pool filters when it comes to removing the smallest particles. DE filters could be the right choice for you if you want perfectly filtered water.

Although these pool filters can efficiently remove fine, small particles, they actually require a bit more maintenance than other pool filters. They typically run at a high pressure, and must be backwashed once they need to be cleaned. Backwash refers to running the water backwards through the filter to remove trapped dirt and debris within the media after the pressure has dropped. 

Hayward  36 SF DE Filter Pro-Grid Permaglass Xl DE3620
Pro-Grid vertical grid D.E. filters provide superior water clarity, efficient flow and large cleanin..
$813.75
Hayward  48 SF DE Filter Pro-Grid Permaglass Xl DE4820
Pro-Grid vertical grid D.E. filters provide superior water clarity, efficient flow and large cleanin..
$917.50
Hayward  60 SF DE Filter Pro-Grid Permaglass Xl DE6020
Pro-Grid vertical grid D.E. filters provide superior water clarity, efficient flow and large cleanin..
$1,011.25
Hayward  72 SF DE Filter Pro-Grid Permaglass Xl DE7220
Pro-Grid vertical grid D.E. filters provide superior water clarity, efficient flow and large cleanin..
$1,282.50
Pentair  DE Filter Fns Plus 36 SF W/O Valve 180007
FNS Plus Filters feature the same, superior curved grid design as the FNS, but with a fiberglass rei..
$836.25
Pentair  DE Filter Fns Plus 48 SF W/O Valve 180008
FNS Plus Filters feature the same, superior curved grid design as the FNS, but with a fiberglass rei..
$942.50
Pentair  DE Filter Fns Plus 60 SF W/O Valve 180009
FNS Plus Filters feature the same, superior curved grid design as the FNS, but with a fiberglass rei..
$1,040.00
Pentair  DE Filter Smbw 4048 47 SF 2" Thd W/Valve 11555
Our SMBW 4000 Series Filters remove the tiniest of contaminants, so your water truly sparkles. In ad..
$1,170.00
Pentair  DE Filter Smbw 4060 58 SF 2" Thd W/Valve 147411
Our SMBW 4000 Series Filters remove the tiniest of contaminants, so your water truly sparkles. In ad..
$1,373.75
Pentair  Quad DE Filter 100 188594
Quad D.E.® Filters provide the highest water clarity of D.E. with the convenience and easy-cleaning..
$1,442.50
Pentair  Quad DE Filter 60 188592
Quad D.E.® Filters provide the highest water clarity of D.E. with the convenience and easy-cleaning..
$1,023.75
Pentair  Quad DE Filter 80 188593
Quad D.E.® Filters provide the highest water clarity of D.E. with the convenience and easy-cleaning..
$1,322.50
Pentair Nautilus DE Filter 36 SF Less Valve
The FNS D.E. filter was designed to provide the clearest, most sparkling water possible, with ease o..
$11,390.00
Sta-Rite  DE Filter 48 SF System 2 PLDE48
System:2 Modular D.E. Filters - PLDE Series for larger pools deliver high quality D.E. filtration in..
$907.50 $726.00
Sta-Rite System 3  DE Filter 53 SF  S8D110
System:3 D.E. Filters - SD Series bring you the proven performance of our diatomaceous earth media i..
$1,095.00 $876.00
Sta-Rite System 3  DE Filter 72 SF  S7MD72
System:3 Modular D.E. Filters - SMD Series deliver high quality D.E. filtration in a simple, one-pie..
$1,287.50 $1,030.00

A filter is used to only remove particulate from your water, so it’s important to still maintain a sanitation system in your swimming pool system. There are three main types of swimming pool filters: sand, cartridge and Diatomaceous earth. Sand filters work the same way as Diatomaceous earth filters, but instead incorporates a bed of sand as the media bed. They also require backwashing. Cartridge filters use cartridge grids to trap dirt and debris.

The main difference between the three types of pool filters can be summarized by the micron size. A swimming pool filter’s efficiency is measured by its micron rating, meaning how many microns can pass through the filter. A micron is a unit of length equal to one millionth of a meter (1/1,000,000 m), or 0.0000394 of an inch. The lower the micron rating on the filter, the smaller the particles it can remove from your water.