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Custom Manholes PVC gasketed couplings are cast at the same slope and angle as the adjacent sewer lines. Flow channels are formed complete requiring no field work. Our Manholes consistently pass both vacuum and hydrostatic testing. Manhole material available in 48, 60, 72, 84 & 96 inch diameters.
Manhole with precast concrete base.
Plan View Precast Sanitary Sewer Base
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Copyright © 2008
Cook Concrete Products, Inc.
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