Lets see your filter sock mounting rigs

[gregzz4]

Finally got mine finished. Can't test it yet as there's no DT or plumbing. It hangs from the bubble trap and is removable. Sump pics will be updated in my build thread once everything is ready.
I was able to cut the circles with my jigsaw. If you try this, don't remove the backing as it keeps the cuttings from being drawn into the cut and gumming it up.