The APCFGR53 diatomaceous earth pool filter replacement grids feature a reinforced center core for increased durability. All of the APC DE grids use a 100% polypropylene cloth with an excellent resistance to acids, alkalis, mildew and rot. This cloth is stitched with a chemical resistant string that is then sonic welded to prevent any tearing or fraying.
- #239000144 center
- Measurements: 18 x 19 5/16 inches
- Rectangular Grid w/Top Exit Port
- Sta-Rite System 3 SD Series DE Filter Element Assemblies; S8D110, 4 Required