Unicel FS-2004 Complete DE Filter Grid Set | 48 sq. ft. | 7 Full + 1 Partial Grid | FG-1004 + PG-1904 Scale & Stain Removers It is designed for pools

It is designed for pools 18 to 22 feet in width

No shocking necessary

Single-speed pumps typically run at high rpm’s around the clock

Phenol red 7

NOTE: The use of a sequestrant is required to filter out the stain

Unicel FS-2004 Complete DE Filter Grid Set | 48 sq. ft. | 7 Full + 1 Partial Grid | FG-1004 + PG-1904 Scale & Stain Removers It is designed for poolsThe Unicel FS 2004 is a complete replacement DE filter grid set for 48 square foot diatomaceous earth filter systems. This set includes all 8 grids needed for a full filter re grid 7 full size grids (FG 1004) plus 1 partial grid (PG 1904) restoring your filter to factory performance in a single service. Complete DE Filter Grid Set 8 Grids Included This set includes everything needed for one complete filter re grid: 7 full grids (FG 1004) + 1 partial