Pump sprayers include hand manual sprayer and gasoline power sprayers.Today we just talk about the hand manual sprayers improvement. The farmers always use backpack hand manual sprayer, and the farmers must bear heavy tank with water. My company engineers took one year to improve the hand manual sprayers like this photo. 

Now this products are welcomed by many farmers . it uses for agricultural and disinfection. The size is as below:

Welcome all customers to inquiry for this product. And my factory will give all customers good service and best quality products.