We want you to be completely happy; (And you can get whatever one you want), but we'd suggest this filter for ponds up to six or eight hundred gallons, maximum. For a hundred and fifty more bucks, if your pond is over six hundred gallons, you should DOUBLE the filter you get, and purchase the 1.1 cf model Aquadyne. Our conservative rating: For ponds up to 600 gallons
Manufacturers Application: For ponds up to 1200 gallons Contains: .60 Cu. Ft. of polyethylene beads. Carries: 30 # of Fish Recommended Water flow: 1200 gph
Try to run the whole pond through the filter once per hour for glass-clear water.
Water used in backwash: 30 gallons Dimensions 16"W x 33"H
