overflow box for 3dprinted bulkhead

i made this for my 3/4in hole aquarium the one with the hex hole meant for this 3dprint https://www.thingiverse.com/thing:3995150
15% infill petg theres also a version with out the hex hole if you want to silicon/attach it your own way
note if you want to attach it your own way please use the no hex hole one thanks