County Materials’ Prima Base™ Monolithic Manhole is a state-of-the-art, high-precision manhole base, designed and manufactured to provide unrivaled quality in sanitary and stormwater management systems.
- Channel, inlets, and outlets are manufactured to precise dimensions and locations, specially produced to project requirements
- Optimized flow achieved through channel geometry, generated by 3D design software and smooth surface texture
- Variable inlet and outlet heights can be produced in a single casting
- Consistent channel appearance regardless of intricacy
- Channel depth control
County Materials’ Prima Base Monolithic Manhole meets ASTM C-478 specifications.
For more information, contact our Pipe/ Precast Team at (608) 244-1381.