Aspirator laboratory bottle with screw closure and PTFE key stopcock– Supplied ready to use – DURAN® glass and PTFE key stopcock outlet – Made of virtually inert, chemically resistant DURAN® glass – Fully compatible with all the GL 45 threads and therefore highly versatile – Tabulator with GL 32 thread – Easy-to-read scale with graduation marks to estimate the content – Fired-on, highly durable white ceramic Aspirator laboratory bottle with screw closure and PTFE key stopcock– Supplied ready to use – DURAN® glass and PTFE key stopcock outlet – Made of virtually inert, chemically resistant DURAN® glass – Fully compatible with all the GL 45 threads and therefore highly versatile – Tabulator with GL 32 thread – Easy-to-read scale with graduation marks to estimate the content – Fired-on, highly durable white ceramic