This is my DIY PVC Overflow and DIY Overflow Box. I used this on my 65 gallon Hexagon Saltwater Aquarium. | Diy aquarium, Saltwater aquarium, Aquaponics supplies
DIY overflow box | REEF2REEF Saltwater and Reef Aquarium Forum
How to Prime a HOB overflow | Melev's Reef
DIY Overflow Box (Weir) | Melev's Reef
Weir style PVC DIY overflow questions "issues" | REEF2REEF Saltwater and Reef Aquarium Forum
Overflow Boxes and Drain Styles - Durso, Herbie, and Bean Animal - Bulk Reef Supply
Clean" internal overflow box idea... will it work? - DIY Projects - Nano-Reef Community