Sock Filtration

[GPitchford]

Looking for sock filtration holders for a 75 gallon sump with a rim any ideas would be helpful

 

[Fish Fan]

Reach out to Marine Biosystems on eBay, they will likely sell you just the sock holder, but I'd give a look at their full sump kits, I think they are the best value sump baffle kit going:
https://www.ebay.com/str/marinebiosystems
Good luck!

 

[X-37B]

You can find 4" & 7" holders on e-bay.