Square/rectangle media cups?

[Dustomatica]

Hi!

I've been using Red Sea's media cups to replace 4" diameter socks. Has anyone seen or heard of square/rectangle cups that could be used with eshopps sumps? I think they are roughly 7"x4".

Thanks much!

 

[homer1475]

I have seen them, just forget where now. Might have been filtercups.com or something like that.

 

[Doctorgori]

I need these to for my sump...Revisit, Bump...
Anyone?