NDS - 3 in. and 4 in. Combo Plastic Atrium Grate, Green

The 4 in. Atrium Drain Grate from NDS is designed to efficiently manage moderate stormwater flows in various settings like mulched landscape beds, natural areas, and window wells. Unlike flat grates, its raised dome design effectively blocks debris such as leaves and mulch while allowing water to flow through uninterrupted. Made of UV-treated polyethylene, combining virgin and recycled content for durability, it resists sun damage and cracking. This drain grate fits 3 in. & 4 in. sewer and drain pipes, single-wall corrugated pipes, and triple-wall pipes for a secure fit. It features a 21.5 sq. in. open surface area and a flow rate of 66 GPM. Used in conjunction with drain pipes, it channels water to downstream discharge points like pop-up emitters or infiltration systems. NDS, established in 1972, offers comprehensive stormwater management solutions and supports professionals with reliable products and tools.