Drain water efficiently away while blocking out harmful leaves and debris before they can enter and clog your pipeline. The 4 in. Round Drain Grate fits on top of drain pipe to drain light flows of stormwater from small lawns, landscaped areas, patios, and walkways. The 4 in. Round Drain Grate, also known as a drain cover, has an open surface area of 2.4 sq. in. and a flow rate of 7 GPM. Connects to 3 in. & 4 in. sewer and drain pipes & fittings, 3 in. & 4 in. single-wall corrugated pipes, and 3 in. & 4 in. triple-wall pipes for a soil-tight fit. The pipe grate is ADA Compliant and heel-proof. Built to stand up to the elements, it's made of polyethylene, a type of plastic, using a combination of virgin and recycled content treated with UV inhibitors to prevent fading and cracking from the sun. As part of a complete drainage system, the grate blocks leaves and debris as it drains water entering drain pipes. The pipes carry the water to a discharge point downstream such as a pop-up emitter, or to percolate into the ground with a dry well or infiltration trench. Start now and find the right drainage grate for your project with the free NDS Home Drainage Center tool at ndspro.com/home-drainage. NDS, founded in 1972, is the preferred choice of professionals and the leader in stormwater management solutions with proven products, tools, and support to help you get the job done right.