Who can/should buy this? Any craft distiller that wants their still to be part of the tour. Pricing and availability? Available on the iStill 100, 500, 2000, and 5000. This option is an addition to the existing stainless steel column segments. This means that when a customer orders the glass column segments, he will also always get the stainless steel segments. It also means that retrofitting any nextgen iStill with glass column sections is entirely possible. This option costs EUR 1.500,- for the iStill 100, EUR 2.500,- for the iStill 500, and EUR 3.500,- for the iStills 2000 and 5000.