Azlon 541905-1000 Polypropylene 1000mL Heavy Wall Autoclavable Erlenmeyer Flask with Stopper 1,000mL heavy-walled polypropylene Erlenmeyer flask and stopper for storing chemicals or mixtures Tooled flask neck and stopper are smooth for easy cleaning and a good fit at the joint Autoclavable flask and stopper withstand temperatures from 0 to 135 degrees C (32 to 275 degrees F) Measures 198mm high, with an outside diameter of 130mm at the base and an inside diameter of 34mm at the neck Graduated markings indicate approximate volume measurements