Industrial Sight Glass allows you to see the levels of liquids or gases passing through a vital point of your design, monitor pressure fluctuations, and perform nearly anything else that sight glass windows can do. The sight glass is most typically used to ensure the safety and purity of pressurised fluids.Industrial Sight Glassis used to check the flow, clarity, and colour of fluids, as well as to monitor the flow of your in-line oxygenator.