The following list provides the manufacturer, model, maximum design flow and other information for engineered pad system proprietary products:¹

Eljen

GSF Geotextile Sand Filter A42 Module | 25 gallons per day per pad
GSF Geotextile Sand Filter B43 Module | 30 gallons per day per pad

Listed May 24, 2019
Eljen | View Website >
View design and installation manual | View/Download >
View approval document | View/Download >

Aerofin

Listed Sept. 5, 2023

Aerofin | View Website >

View design and installation manual | View/Download >

View approval document | View/Download >

Presby Environmental

AES Treatment System | 2.25 gallons per day day per linear foot
Listed June 2013, Updated September 2019
Presby Environmental | View Website >
View approval document | View/Download >

¹R18-9-E305