1. All-plastic ABS enclosure that is formed in one piece;
2. Equipped with an overflow protection unit to prevent liquid from getting into pump body;
3. Equipped with the hand-operated switch and footstep-operated switch;
4. Negative pressure: 0.013-0.09MPa;
5. Air pumping efficiency: ≥20L/min;
6. PC bottle: 2500ml×2.
