Our INDOT-approved, Buy America certfied Type 3 casting is a curb inlet manhole frame and cover structure. It has a 10" rise frame with a 7-1/4" x 22" grated opening for water intake. It is compatable with 24" x 24" inner dimension drainage boxes or 24" diameter manhole openings. Freight shipping is required and Buy America certifications are available upon request. 
 
This casting is equivalent to a Neenah R-3305 and EJ 7500.