700 gph Overflow Box Complete Kit*****Blemished********
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Save some dough on overflows that may be scratched, have Austin Powers teeth, or something else that  makes them less than perfect.  Fully functional, does not affect performance.

This is our patent pending overflow box!! Everything needed to convert your tank to a medium flow overflow tank. Make your friends jealous with this quiet, leak free solution. Click here for our installation video featuring all of your favorite stars from Alpha Centauri to Zeta Bootis. 


Bulkhead strainers do not fit inside our boxes. Box measures 6.25" w x 6" tall x 2" front to back and is rated at 700 gallons per hour maximum flow. This box is typically used on 40ish to 75ish gallon tanks. Use the 'Delete Holesaw' option if you have an acrylic aquarium or do not need an aquarium holesaw.  Recommended continuous flow rate 200-500 gph.  These are typically used in tanks from 30-60 gallons.

Requires 3 3/8" from the wall to the tank for plumbing.

For the latest version of the installation instructions, please click here:

For a complete package, including matched plumbing and a return, click here:

700 gph Overflow Box Complete Kit*****Blemished********

Price: $79.00
Sale Price: $69.00
Availability: Email for Availability
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