Here's a coupla 'support' links:
http://www.marinedepot.com/aquarium_....asp?ast=&key=
And the manufacturer's site:
http://www.pentairaquatics.com/produ...dized_bed.html
And I see they make the Quiet Ones pumps... Oh man are they ever going to get a piece of my mind now....
FWIW, I have one of these units too (used to have it on my FW tank when I had room beside the tank) and it works like a champ.