Pleatco’s D.E. Filter Grids are made of high quality materials that offer durable, long lasting, and energy efficient benefits. The fabric is put through a Fibrillation process that creates a strong material and consistent water flow for effective water cleaning. It’s frame and thread provides additional support on the fabric to ensure no damage or failure’s occur. These Pleatco D.E. Filter Grid Sets bring a superior and long lasting option to your filtration system. They come in various sizes.