C/P from a post I made in another thread.,
You can make one yourself., Its easier then you think., Just go to lowes or homedepot.., and pick up a piece of acrylic., You can cut it with a skill saw or table saw., Just tape the edges to prevent scratching.,. I used a torch to lightly heat mine and bend it over the edge of my bench., worked fine.,. Just dont get it too hot or it will bubble.,,. Practice on a scrap piece first and all will be fine.,, I cut teeth into it with a 1/4 grinding wheel., bingo bango., silicone., your done., Literally took me 30 minutes., and cost what., $17 for a piece of acrylic?
I went with a modified herbie system., 2, 1" drains., the lower completely submerged and a full siphon., the top just as an emergency but also skims the surface of the box.,. I use a ball valve (I know) to control my main drain and it works perfectly.,
One note on the overflow., You may want to think about making it big enough to get your hand down in there if you ever need to without having to tear it apart