Aijiren™ reagent bottles, also called media bottles, are manufactured from high quality, borosilicate 3.3 glass, with GL45 thread cap, pouring ring and PP screw cap autoclavable to 140°C. With their superior chemical resistance, these bottles are ideal for storage of reagents, culture media, biological fluids, and a variety of other aqueous and non-aqueous solutions. Excellent chemical resistance. Minimal thermal expansion. Clear bottles are ideal for displaying items, Sizes range from 100 ml up to 1000 ml and the larger ones may be used to store preserved biological specimens in the lab. The large ones also make excellent terrariums or miniature aquariums. permanent white enamel graduation markings. Large area for bottle marking/identification. Transparent contents and volume can be quickly checked. Reusable and breakage resistant. Suitable for general-purpose laboratory applications, such as storage, sample preparation, transport, autoclaving media.