Fiji Cube Low Profile Overflow Inner Box Overflow Size:Fiji Cube External Overflow Inner Box - 1200 GPH The frag hole size is

The frag hole size is ½” in diameter which fit most frag plugs available in the market

All components are marine safe and refined in every aspect to provide the latest enhancements in form

and even waves knocking your coral frags off

Fiji Cube launches a series of ultra-clear low iron glass aquariums with Fiji Cube’s low-profile external overflow design

Fiji Cube Low Profile Overflow Inner Box Overflow Size:Fiji Cube External Overflow Inner Box - 1200 GPH The frag hole size isThis item can be used as inner box replacement for the Fiji Cube External Overflow box series or as a stand alone Retrofit Overflow Box (additional items needed). Features: Slim and compact design to suit any aquarium set ups Works with rimless, euro brace, and standard trim aquarium tanks (if desired, the rimmed tank may need additional gasket(s) to move high water level, additional gaskets are available for purchase)