Vertical gel electrophoresis tanks are essential laboratory devices used for the separation of proteins or nucleic acids based on their size and charge. Unlike horizontal systems, these tanks are designed for polyacrylamide gel electrophoresis (PAGE), where the gel is cast and run in a vertical orientation. The samples are loaded into wells at the top of the gel, and an electric current is applied, causing biomolecules to migrate through the gel matrix. Smaller or more charged molecules move faster, allowing separation and analysis. Vertical tanks are widely used in molecular biology, biochemistry, and proteomics for protein separation techniques like SDS-PAGE, where high resolution and precise analysis of proteins are required. These systems are critical for protein purification, expression studies, and other biochemical research.