Viscometer capillary tubes are special tools for measuring how thick or thin a liquid is (something termed viscosity). Consider what it would be like to pour syrup and water. The syrup is viscous, the water is free-flowing. Viscometers help scientists and engineers figure out how liquids flow. ZONWON produces high quality Viscometers Capillary Tubes to make sure these measurements are reliable. These tubes are useful in various industries including food, chemical and oil. Tools can help companies make better products and cut costs.