... /- Y -23Thermometer Neck for Vapor/- Y -24Cold Trap- O -- O -25Water Bath Lid//26Adaptor- O -- O -27 .Optional Evaporating Flask100ml, 250ml, 500ml, 1L, 3L100ml ... , 250ml, 500ml, 1L, 3LSymbol Instruction: - Y - (Equipped), - O - (Optional), - / - (N/A) ( * - Only available when ordering of product, not ... , High Vacuum, Bath Lift Rotary Evaporator 5L, oil bath, SENCO(r), China made