Simax® screw-top graduated reagent bottle with GL45 thread red cap. Suitable for autoclaving / dry heat sterilisation up to 200°C Cap must be loose in order to autoclave. With pouring ring and PTFE seal.Volume: 250mlHeight: 143mmOuter Diameter: 70mmPack of 10The Pouring Ring must be removed from the red lid in order to make the bottle suitable for concentrated Nitric Acid storage. Clear glass bottles are suitable for storing concentrated Nitric Acid if they are kept in a dark chemical store.