The Zight 3.3 Borosilicate Level Gauge Tube is a high-performance transparent sight glass tube designed for accurate liquid level measurement in industrial applications. Made from premium borosilicate glass 3.3, this gauge glass tube provides outstanding resistance to thermal shock, chemical corrosion, and mechanical stress. Engineered for use in boilers, pressure vessels, reactors, storage tanks, expansion tanks, and process equipment, this level gauge tube delivers long-term reliability under demanding operating conditions. Its superior clarity allows for easy visual monitoring of fluids such as water, steam, condensate, chemicals, ammonia, and process liquids. Manufactured by Zight, a trusted supplier of industrial sight glass solutions, this borosilicate level gauge tube meets the requirements of modern process industries where safety, accuracy, and durability are critical.