SeaStop Scuppers info

[gary1]

Evening Everyone,
I'm not really sure if this is the right forum for this, but would anyone be able to help me with any information on scuppers that go by the name SeaStop and or SeaBlock. I have found people on the net who sell them just trying to get feedback from people who may have used them or if the Manufactures have a website I could look at. They are a rectangular transom type mount which is what I'm after, they look to have a fairly large opening so should help move a lot of water which is what I'm also after. Anyone who has any type of feedback on these type would be greatly appreciated.
The link is just to show the type I'm talking about
http://store.hamiltonmarine.com/browse.cfm/4,8104.htm
Many Thank's
Gary