400-24® Manhole Drainage Grate
The 400-24® 24″ cast iron manhole grate, offering an open area of 180 square inches, is designed to fit the 400-24® and 380-24R® manhole rings. This stock item is H-20 traffic rated when paired with an H-20 rated ring and properly installed in reinforced concrete. Solid covers are also available as stock items, providing versatile options for various applications. Made from uncoated cast gray iron that meets ASTM A48 CL35B or better and AASHTO M306-10 (M105) standards, this grate ensures durability and compliance. Proudly made in the USA, it is a dependable choice for infrastructure projects.
Contact Bass & Hays or call us today Toll Free 1-800-258-2278 -or- 972-263-1360 DFW Metro to check stock, request drawings or submittals, BABA, AIS or LEED certifications, or place orders.





