Simax® screw-top graduated reagent bottle with GL45 thread red cap. Suitable for autoclaving / dry heat sterilisation up to 200°C & for long term chemical storage. Cap must be loosened in order to autoclave. With pouring ring and PTFE seal.Volume: 500mlHeight: 182mmOuter Diameter: 86mmPack of 10In order to make this bottle suitable for storing concentrated acid the red pouring ring must be removed from the bottle.Clear glass bottles are suitable for storing concentrated Nitric Acid if kept in a dark chemical store.