I have a custom built HOB refugium / overflow box, I used it for cheato refugium but you can use it for what ever suits you... media box maybe? All you have to do is use your imagination.
Measurements: 34-3/4”L x 4”W (8-1/2” if including the overflow box) x 7-3/4”T
The box hangs on aquarium glass thickness up to 3/8” thick glass. Was previously on a 60gal rimless tank.
Asking for $20 takes it.
619-547-7057 (Text/Call)
FCFS
Photos of when it was being setup so you can see the layout. It was just pulled off the tank last night and will need some light cleaning. Hold water just fine and does not leak.