・ It is a round bottom flask for a glass -made spectral cover that separates the cover part and the flask part.
・ There are a wide range of applications such as chemical reactions and biological reactions.
・ By separating it from the classables cover, you can easily put in and out of solid and viscous samples and cleaning.
・ Use the O -ring in combination with a SCHOTT type band.
・ The groove of the O -ring is only on the flask side and there is no groove on the cover side.