A
series of polypropylene inserts for the purpose of securing steps in
the wall of a precast concrete manhole or other concrete structure.
BENEFITS:
- Placement of insert is done at the time of manufacture.
- Concrete wall remains watertight.
- Guaranteed alignment and projection of steps.
- Precise hole to accept step shank.
- Interference fit makes installation of step rapid and
simple.
- Polypropylene offers excellent chemical resistance.
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