The H-R series is an angle framed access cover with H-20 load rating. H-R series cover should be used in off street locations where the unit will not be subjected to high density traffic. Acceptable locations include vaults located close to roadways but not in the street. Single and double door units are supplied with spring assists. This unit should be used in underground vaults that have provisions for drainage of incidental water. This unit should not be used if water intrusion is a determining factor. (See channel framed series H-C).