In-Pond Skimmer PS1000A. 

For ponds up to 1000-gallons. 

Removes debris from water surface. 

Easily attaches to TetraPond Water Garden Pumps. 

Use with pumps 550 to 1900 gph.

product is approx:  12 inches long, 12 inches wide, and 10 inches tall

Also Avaliable:

Tet19014: Replacement Pad