Conforming to Federal Specifications C-76 Class IV, Wall B
Modified Bell & Spigot
- 12″ Diameter x 6′ Long
- 18″ Diameter x 8′ Long
- 24″ Diameter x 8′ Long
- 30″ Diameter x 8′ Long
- 36″ Diameter x 8′ Long
- 42″ Diameter x 8′ Long
- 48″ Diameter x 8′ Long
Precast Reinforced Concrete Manhole
- 48″ Diameter x 5″ Thick
- 1′ High Riser Section
- 2′ High Riser Section
- 4′ High Riser Section
- 3′ High Concentric Cone
Precast Reinforced Concrete Top and Bottom Slabs
- Top Slab for 48″ Diameter Shallow Manhole
- Bottom Slab for 48″ Diameter Standard Manhole