300-24® 6X Manhole Riser Ring

The 300-24® 6x standard cast iron 6″ tall riser ring is a high-quality, USA-made solution for 300-24® series manholes, available as a stock item for fast fulfillment. Crafted from uncoated ASTM A48 Gray Iron CL35B or better and compliant with AASHTO M306 standards, this riser ring is H-20 traffic rated when used with an H-20 traffic rated ring, cover, or grate properly installed in reinforced concrete. Standard-size steel riser rings are always in stock, with additional sizes and styles available for special orders, offering flexibility to meet diverse project needs.

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.