Rectangular Sight Glass

Rectangular Sight Glass is a rectangular transparent panel made of heat-resistant glass or acrylic, specifically designed for industrial containers, pipelines, or reaction equipment to directly observe internal liquid levels, material flow, or chemical reaction states. Its flat surface and precise dimensions ensure clear and lasting visual windows in high-pressure, high-temperature, or corrosive environments, widely used in industries requiring strict process monitoring such as chemical engineering, pharmaceuticals, and food processing.