ANGLE RING
The optional Angle Ring allows conformity of
the manhole sloped road surfaces.
FINISH RING
The Finish Ring is engineered to provide a
watertight seal. Finish Rings come in quarter
inch increments.
GRADE RINGS
Grade Rings are installed on the top of the
concrete cone section of a vault or an existing
or new brick structure, and stacked to add
required height. Grade Rings come in 2 inch,
4 inch and 6 inch thicknesses. Each ring is
engineered with keyways that provide vertical
alignment to eliminate inflow.
FLAT RING
Available Flat Rings come in 2, 4, and 6 inch
thicknesses, and mate with the manhole
cover frame. |
 Angle Ring Notches:
The large bump-out indicates
the highest point of
the Angle Ring. Smaller
notches indicate 22.5° increments (1/8 turns).
 Part Numbers:
Large part numbers help
crews assemble the correct
parts for a given job.
 Angle Ring Notches:
We make it as easy as
possible to properly install
the PRO-RING system.
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