Bass & Hays’ precision-fit steel riser rings raise the cover from the lid seat inside the manhole frame. Made from ASTM A36 welded and coated carbon steel, H-20 traffic rated, and proudly American-made. Each ring features secure set screws and optional adjusting bands. Standard sizes fit 300-24®, 400-24®, VRM-30®, 1225-40®, and V-1342 series, with custom sizes available using our Steel Riser Ring Custom Spec’s Sheet for a perfect fit. We can build a custom steel riser to fit ANY OTHER dimension Bass & Hays product as well as any other manufacturer’s product. 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. Standard Stock Items Available- 300-24® series (3 set screws) 1X, 1.5X, 2X, 2.5X, 3X, 4X, 6X 400-24® series (6 set screws) 1X, 1.5X, 2X, 2.75X, 3X, 4X, 6X VRM-30® series (6 set screws) 1X, 1.5X, 2X, 2.5X, 3X, 4X, 6X V-1342 series (3 set screws) 1X, 1.5X, 2X, 2.5X, 3X
