For procedures using 96-well plates which require caps to prevent evaporation and contamination. Made of flexible polyethylene, these caps provide a positive shallow seal for each well. Each cap can be separated from the strip for individual wells. Insert into flat and round bottom wells containing up to 300 and 200 µl respectively. Seal is maintained from -20 to +60°C (-4 to +140°F). Compatible with over 20 different Nunc MicroWell® plates and modules for tissue culture, bacteriology, and immunology products. Sterile and nonsterile available.