This is a Pentair Sta-Rite S7D75 Pack of 12 Filter Grid Element Offset Exit Port measuring 18 x 13-3/16 Inches. This covered filter element is for the System 3 Model S7D75.
The 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.
