This is a Hayward Replacement 60 Square Foot Short Filter Element for ProGrid Vertical Grid DE Series DE6020 Filter. This filter element is used in the ProGrid DE6020 and MicroClear DE6000 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.