Glass apparatus Kjeldahl compound: a Kjeldhal boiling flask 250ml 19/26 screwsocket a multiple adapter 19/26 screwsocket a funnel with stopcock 19/26 screwsocket a bosshead adapter 19/26 screwsocket a condenser Liebig 200mm 19/26 screwsocket with connexion GL14 with plastic connector 4 caps and seals 19/26 screwsocket