Versatile drying trays prepare paper filters, stain, develop, rinse, and dry items safely. The containers accommodate the necessary solvents and buffers needed for separating molecules in electrophoresis procedures or substance mixtures in chromatography tests. Meeting analytical method needs, the overall dimensions and volume capabilities allow common paper sizes to be suspended in processing liquids. Typically with a durable glass manufacturing, the economical trays withstand sterilization procedures for reuse.