enourmous pool filters for possable reef use?

[Richard_Dicosimo]

so i was at big als and they where selling this mamoth sand bed filter... and i bought it thinking i might resell it and now im wondering if there is a potential use for a saltwater app?? http://www.pelicanpool.com/pools/23proseriesr.htm
i have only ever seen these thins run on ponds or pools.

is anyone using one of these or seen one used? is it worth it to use?

Richard