Borosil Reagent Bottles Wide Mouth With Screw Cap, Square Capacity 500ml, 1506024, are used to suspended in liquid materials. Bottles have multiple uses, as Aspirator, Reagent and Solution Bottles. Bottles are not used for direct heating purpose. They are designed with heavier wall thickness, making them mechanically stronger to withstand wet or dry sterilizationSupplied with GL80 screw caps and pouring ring made of polypropylene, autoclavable at 121C Square shape enables stacking of bottles during usage, storage and transport Extra wide GL 80 neck gives ease of pouring & filling of liquids as well as powders Large stable base helps prevent tumbling of the bottle Ideal for storage and transfer of pharma and biopharma products