Description
The heavy traffic extensions are designed to be stacked on Concast’s line of standard FHR & “SureLock” FHRSLP handholes; thereby affording more height options. The FHR(SLP) steel cover is purchased with the handhole, and will fit into the extension easily. These extensions come in a variety of heights including 12″, 18″, 24″, 30″, & 36″. For example, if you need a 48″ tall handhole, you would combine the standard 36″ tall FHR handhole with it’scorresponding 12″ extension.