Efficiency’s Inner Shield Liner is used to prevent under-box caving of unstable or wet soil. The ISL fits inside of a regular trench shield and is much faster and safer to use than steel plates and sheeting which are not recommended. It also increases the speed of placing pipe to grade.

Efficiency’s Inner Shield Liner is used to prevent under-box caving of unstable or wet soil. The ISL fits inside of a regular trench shield and is much faster and safer to use than steel plates and sheeting which are not recommended. It also increases the speed of placing pipe to grade.

Efficiency’s Inner Shield Liner is used to prevent under-box caving of unstable or wet soil. The ISL fits inside of a regular trench shield and is much faster and safer to use than steel plates and sheeting which are not recommended. It also increases the speed of placing pipe to grade.