Has anyone used this?

[specialkb]

http://www.championlighting.com/product.php?productid=31281&cat=735&page=1

Just wondering how quite it actually is.

[mfp1016]

probably works as well as a durso or stockman

[Roy G. Biv]

Similar.. If its on for a HOB overflow, I hear they work well.

http://i162.photobucket.com/albums/t251/pmolan/1.jpg

[Dr Begalke]

looks like a stockman design, yes they are much quieter then a standard standpipe (like the one in the pic above).