Heap biggum flow from this baby. Everything needed to cut two big holes and mount a big overflow. To find out why our overflow boxes rock, click here. Everything needed to install a 1500 gph overflow, overflow box, baffle, aquarium hole saw, plumbing, two 1.5" bulkheads, etc 2 X6 X12.25 Click here for our installation video featuring all of your favorite stars from Alpha Centauri to Zeta Bootis.
Bulkhead strainers do not fit in our overflow boxes. Use the 'Delete Holesaw' option if you have an acrylic tank or do not need an aquarium holesaw. Recommended continuous flow rate 500-1000gph. This system uses two 1 1/2" drains.
These are typically used in tanks from 65-110 gallons.
For the latest version of the installation instructions, please click here: