Distillation head with integral vigreux vapor path column. Ace-Thred™ condenser inlet/outlets and vacuum monitoring port. Drip tip distribution receiver joint and 14/20 thermometer/probe port. Choose from Ace-Safe™ 5853 or PTFE 5858 family of hose connections. Join with Ace Glass 5028-26-14/20 to #7 Ace-Thred™ thermometer probe adapter.