Filter cup firment issues

[xLUGUBRIOUSx]

Looking for some help. Set up a new tank that has 3 filter cup/sock holders. I bought the red sea ones but they aren't a good fit, they are a bit undersized and enough water leaks around them that it's loud and annoying lol.

Anyone aware of any cups that are slightly larger in diameter? Or aware of a gasket or something that would work well.

It's a proclear sump.

Thanks.

 

[Peace River]

You may want to share the measurement of the hole in the sump. Good luck with your search!

 

[xLUGUBRIOUSx]

You may want to share the measurement of the hole in the sump. Good luck with your search!

Thanks. I'll measure it!