High Voltage Electrode Boilers for the production of hot water and steam up to 52 MW of capacity and 25 KV supply voltages. Zero-emissions, clean technology to meet the Paris Accord requirements to reduce GHG emissions from boiler plants. Also, direct-fired heat recovery equipment to produce 55 deg. C hot water from stack waste heat from gas-fired boiler systems, increase efficiency up to 15% and reduce emissions by 40% or more. Other products include automatic strainers for intake, process and effluent filtration and FRP pressure vessels for corrosive process applications and seawater intakes.