This is a Pentair Large Full Grid Assembly for FNS24 Pool and Spa D.E. Filter, Nautilus NS24 and Nautilus Plus NSP24 Pool and Spa D.E. Filters.
These grids are injection molded from 100% virgin, high impact styrene then covered with multi-filament polypropylene fabric. Each grid has been engineered with subtle design improvements specifically for this model and manufacturer.
