This is a Swimquip compatible filter element grid with center port measuring 18 x 20-3/4 inches. The thickness of the grid is .875 inches.
Universal Filter Grids for Diatomaceous Earth filters feature a reinforced center core for added durability and chemical resistance, and sonic welded seams to prevent fraying. Their proprietary D.E. grid cloth outlasts all others. They have superior strength fabric and heavy nylon stiches.
TIP: Place filter manifold upside-down, on two bricks facing up, push in each Grid, then add bottom spreader.
