Have you tried looking he http://www.hagen.com/usa/ponds/index.html ?

"naki" wrote in message
news:Yhqja.2785$6t.66@fed1read05...
I was just at my local Petsmart and they had this filter. I cannot find
anything on the net about it. It is made by Laguna and says Power Flo
underwater round filter.

The only thing close I could find to a model number is Art.# PT-1750. It
wasn't even listed on the manufactures web site.

Has anyone used one of these? I have a small 250-300 gallon pond.