Saratj1
Aquarium Advice FINatic
Check out www.heatsinkusa.com they seem to have pretty good stuff. I got that heatsink from someone who I think got it from them. I ordered a similar sized one from china and it's not as well made or heavy duty as that one is, but if your mounting to plastic, weight may be an issue. I believe my larger heatsink is around 25lbs, the slightly smaller one is probably 15-20lbs.