American Highway Products Manhole Adjusting Rings

December 2009 Vol. 64 No. 12

Manhole Adjusting Rings are installed under the utility casting on new construction or rehab of existing utilities.

They replace pre-cast concrete donuts or brick and mortar material. The Manhole Adjusting Ring is light weight and will not break. Freeze-thaw cycles do not affect it, providing a water tight seal that will last many years. Because the Manhole Adjusting Ring is made of solid rubber, it performs like a weight bearing pad on a bridge, eliminating vibration from traffic which deteriorates the cement substructure of the utility. Tapered sizes allow perfect adjustment to the roads crown or slope. 888.272.2397,