This is a Pentair Large Full Grid Assembly 48 square feet for FNS48 Pool and Spa D.E. Filters, Nautilus NS48 and Nautilus Plus NSP48 Pool and Spa D.E. Filters.
This grid is sold individually. Seven (7) are required if you are replacing all in your pool filter.
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.
