The Woulff bottle is used in vacuum apparatus and serves to collect, clean and/or dry gases.– Tight closure due to standard ground joint – Three standard ground joints for the import or export of gases – Additional access through the ground tubulature – Fired-on, highly durable white print – The Woulff bottle is used in vacuum apparatus and serves to collect, clean and/or dry gases.– Tight closure due to standard ground joint – Three standard ground joints for the import or export of gases – Additional access through the ground tubulature – Fired-on, highly durable white print –