*New pump head: Smoother, more uniform and safer filtration. *Fixed gear design: with "40R", "60R", "160R" and "240R" four gear positions, can meet the filtration needs of large liquid transfusion, powder needle, water needle and other dosage test products *Split type drainage tank design: can move freely, convenient operation habits of the operator. The tank is curved in design, and the waste liquid will not remain in the tank, solving the bacteria that may be produced after long-term experiments. *Bottle bracket design: solves the trouble caused by the replacement of the traditional large bottle bracket and small bottle bracket and the risk of the test product falling off during operation. The bottle bracket will firmly fix the test product on the bracket, which is safe and beautiful *Circular bayonet design: The traditional right Angle bayonet is very laborious when installing the hose, and sometimes the pipe will be broken, causing economic losses, and now the circular bayonet can be gently inserted, and the hose can go in, which is very convenient. *Integrated switch design: Avoid opening too many holes on the housing, so that the housing is cleaner and more humane. *The wrench is designed according to the mechanics of the human body and can easily hold the leather pipe firmly.