At Pentair we’ve revolutionized the pool industry with innovative and high-performance pool pumps filters heaters cleaners lights automation systems and more. Each product is expertly engineered and crafted with pool and spa owners in mind and adheres to our strict standards for quality performance and design. This complete manifold grid is designed to use with Pentair Nautilus Nautilus Plus pool and spa D.E. filter models NSP36 NSP48 NSP60 NSP72. Measures 15 1/2 inch length by 5-inch height by 15 1/2 inch width. This genuine Pentair replacement part keeps grids in place during filtering. A broken manifold will result in DE diatomaceous earth material leaking into your pool. The Pentair 192193 Nautilus Pool/Spa DE Filter Complete Manifold Grid Replacement keeps your filter up and going so you can continue the fun.