Black plastic corner for plumping

[TD1260]

Does anyone know the proper name for, or where I can buy several of the black corners typically used in reef tanks to hide the plumbing? They tend to be curved with grooves at the top.

Thanks!

 

[Quietman]

Inside the tanks? Like this... Internal Overflow . There a few sellers there and I assume elsewhere. Search on internal overflow if this is what you need.

 

[Fish Fan]

I think you're looking for the corner overflow that comes on "reef ready" standard tanks, like this:

If so, I did a little searching, and I couldn't find where to buy one like this, but you could always go with a more squared version:
https://www.jaxracks.com/product-page/corner-overflow-box-1200gph-and-1800-gph-surface-skimmer
If you'd like to look for the curved style, I think they are called "corner overflows for reef ready" tanks.

Good luck!