The Unicel FG-1236 Pentair Purex SM/SMBW Full Vertical DE Grid Single Replacement, 36 sq ft. is a single D.E. Grid for the SMBW 4036 4000 Series DE Filter.
- 36 sq. ft.
- Length: 19-3/8"
- Width: 10-3/4"
- Vertical DE Grids: Full
- Collar has single notch and is covered with a black adapter