NDS 6 x 6 x 4 Square Grate & Adapter

This NDS square grate is used to drain excess water and direct it to a more water safe area such as a curb or gutter. Can be use in large lawn areas, large landscape areas, patios and atriums. Can be used with 3″ or 4″ sewer and drain pipe and fittings, 3″ and 4″ corrugated pipe and 3″ or 4″ triple wall pipe. Open surface area 14.44 sq. in. and will accommodate 44.17 GPM with 1/2″ of head. The NDS 6″ structural foam polyolefin grate is injection molded in 1 piece for strength and the added ultraviolet light inhibitors prevent fading and cracking from exposure to the sun. ADA compliant and heel proof.