Used working Buchi evaporator /rotavapor model  R-124. The rotation regulator works good. The Buchi Waterbath model B-481 is included. All the The glassware (  coiled condenser with valve  that helps to replace the receiving flask without stopping the evaporation, glass duct, 1-liter glass receiving  flask, adaptor with antispoil tube, 500 ml round bottom evap. flask)  are included so, the system is ready to go.  cosmetically good as pictured.. If not satisfied, You can return this unit withing 5 days for a full refund minus shipping