Technical parameters: air flow 2x56L / s; vacuum degree 235 / 23.5mbar / Kpa; dust box volume 65L; rated power upper limit 2750W; standard inner diameter 40mm; C-ID power cord 10m; working noise 74db / A; weight 19kg; size ( Length x width x height) 600x480x920mm, used to pump toxic and harmful dangerous liquids.