The 36 Sq Ft Partial Vertical DE Grid is an essential component designed for use with various Diatomaceous Earth (D.E.) pool and spa filter systems. This partial grid provides 36 square feet of filtration area and is compatible with systems from American, Pac-Fab, Hayward, and Astral. It plays a vital role in maximizing filtration efficiency by filling gaps in the filter housing that full grids cannot cover, ensuring optimal water flow and complete filtration. Constructed with durable, high-quality materials, this grid guarantees long-lasting performance, keeping your pool water clear and your filtration system running smoothly.