This page is intended to help precast facilities quickly access Hydro International installation information. Questions? Call 207-321-3747. 

First Defense® Hydrodynamic Separator

• 3-ft First Defense Precaster Manual
• 4-ft First Defense Precaster Manual
• 5-ft First Defense Precaster Manual
• 6-ft First Defense Precaster Manual
• 8-ft First Defense Precaster Manual

Downstream Defender® Hydrodynamic Separator

• 4-ft Downstream Defender Precaster Manual
• 6-ft Downstream Defender Precaster Manual
• 8-ft Downstream Defender Precaster Manual
• 10-ft Downstream Defender Precaster Manual
• 12-ft Downstream Defender Precaster Manual
• Downstream Defender Precaster Checklist
• Downstream Defender Pipe Connections & Couplings

Up-Flo® Filter

• Up-Flo Filter (Ribbon) 4ft. Manhole Precaster Manual
• Up-Flo Filter (Ribbon) Vault Precaster Manual
• Up-Flo Filter 4ft. Manhole Precaster Manual
• Up-Flo Filter Vault Precaster Manual
• Up-Flo Media Ribbon Installation (Quick Reference)