System Filters are designed to separate the growing media from the drainage material, insuring the appropriate flow of water.
GRS provides:
1. System Filter- FF35 and FF45
We use a non-woven, Geotextile fabric to separate the drainage layer from the media layer and retain media in the edging component. Our FF35 and FF45 system filters have high flow rates for optimum flow during storm events. FF45 has a flow rate of 110 gpm, FF35 flow rate of 150 gpm.
Roll sizes = 6.25′ x 200′ (larger roll sizes available)
Down load data sheet here.
2. MiraDrain
For further information, please contact us.

