- Joined
- Aug 13, 2019
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- 2,607
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- What state or country do you live in
- California
I am wanting to add a manifold to my 525xl. Does anyone know what MM the OD of the return piping is? I want to T off of it.
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I have a Red Sea 525XL. The overflow is the same size, so I ordered another one from Marineandreef.com. The product code is RRS42220 for $25. You can then cut it and transition it into your system. I would like to see more pictures of your build.

They're always a work in progress. Thank you for showing us. You must have a newer sump. My small ATO is on the side and over the socks. I'm trying to squeeze in a SK-5000, CW-200 Algae Scrubber, reactor, and skimmer. Where did you put the ATO?
They're always a work in progress. Thank you for showing us. You must have a newer sump. My small ATO is on the side and over the socks. I'm trying to squeeze in a SK-5000, CW-200 Algae Scrubber, reactor, and skimmer. Where did you put the ATO?

