Test Tube rack for 40 x 1.5/2.0ml tubes

To control gas flow rate

SONOPULS mini20 set, 230 V~(± 10%) 50/60 Hz, consisting of HF-generator GM mini20, ultrasonic converter mini20 and micro tip MS 2.5

Secondary Condenser Component Iron Stand + Condenser + Vacuum Buffer Tank + Collection Bottle (500mL)