Due to the high wall-thickness of the vessels and the exact machining of the vacuum-tight ground joints on the lid and base, storage under vacuum is possible – even over extremely long periods. Suitable for full vacuum (0 mbar). Spare parts such as lids, bases, stopcocks and caps can be interchanged as required (observe DN). Available with or without porcelain plate. Easy-to-read scale with graduation marks to estimate the content. Fired-on, highly durable white print.