The HI Vac Junior is made out of stainless steel that is on four castors. It has a maximum vacuum of 650 mm HG with an LPM of 42. It has a piston pump. The jars measure 2 x 2 liters PC and the filters are trap. The tubing measures 10 mm ID x 2mtr and is composed of PVC. The vacuum gage is 6.25 cm in diameter and has 0-760 mm HG. the power supply is 220 V AC, 50 / 60 Hz, 130 Watt. The volume is 50 dB A ± 3. The size is 39x31x62 cm and it weights 15 kg. The safety overflow is dual mechanical and comes with a 110 V upon request.