Our INDOT-approved, Buy America certified 18" Pipe Catch Basin Beehive Grate is exclusively a beehive grate casting that fits into 18" pipe bells. It can also accommodate approximately 23" diameter x 2-1/2" deep recess structures. It has a 7-1/2" total rise, which includes a 4-1/2" above-ground rise. Freight shipping is required and Buy America certifications are available upon request. 
 
This casting is equivalent to a Neenah R-4350-D and an EJ 6534.