Size:
1m (39.37″) length
2″ internal width
3.15″ external width
3.5″ height
1.5″ bottom knock out
Materials:
The trench system bodies shall be manufactured from polyester polymer concrete with minimum properties as follows:
Compressive strength: 14,000 psi
Flexural strength: 4,000 psi
Water absorption 0.7%
Frost proof
Salt proof
Dilute acid and alkali resistant




