Help with overflow box

[blairnz]

Hi all,

Hoping someone can help me with an overflow box issue. I’ve bought a second hand aquarium with what I think is a large Eshopps branded overflow box. I’ve managed to snap one of the locking nuts so am looking to find a replacement.

I’m based in New Zealand, and our bulkhead sizes are different. Is someone able to first help me figure out what size I need to get as a replacement (I’m no plumber, so this is all super new to me) and second point me in the direction of where I might be able to order a new one from? I tried a 1 1/2inch off Amazon which cost a fortune to ship here but was too big. So I guess I need a 1 1/4 inch?

Thanks in advance for any advice!

 

[T-J]

Maybe this chart will help you get the right size bulkhead? I see that this place carries bulkheads. Hopefully they have what you need and are cheaper since they're local.
https://wellingtonmarineaquarium.co.nz/