Terre Hill Concrete Products, Inc.
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Terre-Hill - Manholes
All sanitary manholes and related products from Terre Hill Concrete Products are designed to meet or exceed ASTM C-478.
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Terre Hill Concrete can eliminate inflow of wastewater into sewer systems with its Grade N Seal system.
Terre Hill Concrete Products offers HDPE Agru Sure Grip® liners and fiberglass channels that provide a tough protective barrier against deterioration of concrete manholes from sewer gases and other aggressive chemicals.
Manholes
Terre Hill Precast manufacturers manholes from 36-inch diameter to 144-inch diameter. Terre Hill Precast can adapt the product to meet any site requirements by supplying:
- Standard or flanged base
- Risers
- Flat Top
- Grade Rings
- Joint Gaskets
- Coatings of various materials
- HDPE Agru Sure Grip Liners: corrosion protection
- Fiberglass Channels: corrosion protection