NDS 90S - 6IN Atrium Grate - Sand Screws Pour a 2-3 inch concrete

Pour a 2-3 inch concrete haunch around the sides and bottom of the trench

Prepare the base: Create a 4-inch minimum concrete base

Pipe compatibility: 3" and 4" corrugated or sewer & drain pipe

Regularly inspect the overlapping cover seal to ensure continued protection against dirt and debris infiltration

Place the Spee-D Channel sections in the trench

NDS 90S - 6IN Atrium Grate - Sand Screws Pour a 2-3 inch concreteNDS 90S 6" Atrium Grate Sand Colors: Black (#90), Brass (#90B), Gray (#81), Green (#80) and Sand (#90S) The NDS 90S 6IN Atrium Grate is a durable and efficient drainage solution designed for outdoor spaces. This 6 inch round atrium grate effectively prevents debris from entering your drainage system while allowing water to flow freely. Ideal for use in landscaped areas, patios, and around downspouts, this grate helps maintain proper drainage and