- Unicel FG-1248 replacement filter grid is compatible with Purex/Pentair SMBW2000 series, SMBW2048 Purex/Pentair SMBW4000 series, and SMBW4048
- Captures debris as small as 2-5 microns
- Filter coverage area: 48 square feet
- Grid uses diatomaceous earth to filter debris
- Effective for a longer time between cleanings that other DE filter grids