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Filter Media Options

Our filtration products can be customized using different filter media to target site-specific pollutants. A combination of media is often recommended to maximize pollutant removal. More information is available in the StormFilter Configuration Guide.


PhosphosorbPhosphoSorb is a lightweight media built from a Perlite base that removes total phosphorus (TP) by adsorbing dissolved-P and filtering particulate-P simultaneously.


PerlitePerlite is expanded volcanic rock. Its porous, multi-cellular structure and rough edges make it effective for removing TSS, oil and grease.

CSF® Leaf Media and Metal RX

CSF Leaf MediaA granular organic media created from deciduous leaves, CSF is most effective for removing soluble metals, TSS, oil and neutralizing acid rain. MetalRx, a finer gradation, is used for higher levels of metal removal.


ZeoliteA naturally occurring mineral used in a variety of water filtration applications, is used to remove soluble metals, ammonium, and some organics.

Granular Activated Carbon (GAC)

Granular Activated CarbonGAC has a micro-porous structure with an extensive surface area to provide high levels of adsorption. It is primarily used to remove oil and grease and organics such as herbicides and pesticides.


ZPG MediaA proprietary blend of zeolite, perlite, and GAC to improve the performance of perlite and target organics, soluable metals and other pollutants.