Used with Pressure Reactors, listed in Reaction Section. Heavy wall condenser has a #15 Ace-Thred at top that can be stoppered using 5846 Plug, not supplied. Bottom drip tip is long enough to be secured in the #15 Ace-Thred on 6433 Reactor Head, One-Piece Pressure Reactor or any vessel with a #15 Ace-Thred. Drip tip has a bump and groove that restricts blowout when secured with 7506-06 Bushing and O-Ring. Inlet/outlet have #7 Ace-Threds for use with Ace-Safe 5853 easy connect/disconnect tubing connectors.