This is a Pentair Full Size 36 inch covered filter grid, 72 square feet, for the Nautilus and Nautilus Plus filters. This grid is sold individually. Seven (7) are required if you are replacing all in your pool filter.
Pentair filter 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.
