Tristate is a distributor and building systems integrator of commercial HVAC mechanical systems and related equipment. It offers electrical equipment, integrated mechanical systems, chillers, chilled water air handling units, energy recovery, building automation system, filtration, cooling tower water treatment, humidification, terminal and natatorium equipment, evaporative cooling, thermal storage, DX air handling units, sound attenuation, fluid heat exchangers, hydronic flow control, airflow measurement, variable refrigerant volume systems, and laboratory exhaust solutions.