This polycarbonate bottle’s square design requires less storage space than other bottles holding the same volume. The storage bottles are available in 125 mL, 250 mL, 500 mL and 1L sizes, can be autoclaved once at 121 C and 15 psi, use screened white enamel graduations as opposed to molded graduations, and utilize a 45 mm cap that provides easy access for liquid transfer. The bottles contain a large white marking spot for easier documentation.