First Defense® PDF or DWG drawings for use with projects in the US or Canada. 

Use the links below to download general arrangement drawings in PDF or DWG format for the First Defense^® stormwater treatment system in different sizes and configurations. All drawings are shown in both Imperial and Metric units.

First Defense General Arrangement Drawings

• First Defense 3-ft/900 mm PDF GA (PDF)
• First Defense 3-ft/900 mm DWG GA (DWG)
• First Defense 4-ft/1200 mm PDF GA (PDF)
• First Defense 4-ft/1200 mm DWG GA (DWG)
• First Defense 5-ft/1500 mm PDF GA (PDF)
• First Defense 5-ft/1500 mm DWG GA (DWG)
• First Defense 6-ft/1800 mm PDF GA (PDF)
• First Defense 6-ft/1800 mm DWG GA (DWG)
• First Defense 8-ft/2400 mm PDF GA (PDF)
• First Defense 8-ft/2400 mm DWG GA (DWG)
• First Defense 10-ft/3000 mm PDF GA (PDF) NEW!
• First Defense 10-ft/3000 mm DWG GA (DWG) NEW!

• FULL TRASH CAPTURE: First Defense 4-ft/1200 mm PDF GA (PDF) NEW!