Unicel 50-sq ft Pool Cartridge Filter

The Unicel FG-1004 vertical D.E. filter grid is for up flow and down flow D.E. filter systems like American, Astral, Hayward, Jandy, Pac Fab, Premier Atlas, Purex, Sta Rite and Waterway. This Unicel FG-1004 is designed to last far longer than cheaper alternatives. Measuring 11 inches wide and 24 inches long, this Unicel FG 1004 can cover 48 square feet.??Can be used as a replacement for: Unicel FG 1004, Hayward Filter Grids, Astrial Grids, Jandy Grids, Pentair Grids, American Products Grids, Pac Fab Grids, Sta Rite and Waterway Grids.