1. Chlorine Cell Covers and Collection Headers
2. Buried and Above Ground Piping Systems - Effluent, Process, Brine, Drain Lines and Sewer Outfall
3. Stacks, Stack Liners and Chimney Caps
4. Storage Tanks and Covers (Shop and Field Fabricated) for Vacuum and Pressure Service (15 psi)
5. Scrubbers/Absorption Towers (Cl, ClO2 and SO2)
6. Mist Eliminators, Precipitators and Filter Vessels 
7. Duct Systems including Dampers and Valves
8. Field Services for Inspection and Repairs, Tank Linings and Trench Liners

Ershigs designs, manufactures, fabricates and installs corrosion-resistant products made of Fiberglass Reinforced Plastics (FRP) such as process and effluent piping, abrasion resistant piping, storage and process vessels, stacks and chimney liners, duct systems and valves.