CALCO is a full-service water perfection provider that has been serving science and industry since 1969. They offer a range of water purification equipment, services, and supplies, specializing in high purity water management for commercial needs. Their integrated system designs incorporate advanced technologies like filtration, ion exchange, reverse osmosis, ultraviolet sterilization, and microfiltration. Calco's core services include providing deionized water, reverse osmosis, ion exchange resin, water softening, filtration, and bacteria control. Additionally, Calco operates a sister company, Water One, which purifies drinking water through reverse osmosis and serves Southwest Florida and the Chicago Suburbs.