ITEM NAME:Gardening Pressure Watering Spray Bottle Multi-Function Garden Irrigation P O5H7 Gardening Pressure Watering Spray Bottle Multi-Function Garden Irrigation P O5H7 1.The first is the pressure difference.The pressure of the water in the kettle+the pressure of the internal air is greater than the pressure of the outside atmosphere,so the water will flow out. 2.The flow rate per unit time is equal according to the fluid flowing from the same source.The hole of the kettle is small,and the flow rate is large.It uses a push pump to push the gas into the bottle,so that the gas pressure inside the bottle will increase,so as long as the water spray port is opened,the water will be forced out of the bottle by the atmospheric pressure inside the bottle.The pressure is higher,and the spray is more far. Type:Water Cans PUS 1:Watering can PUS 2:Cleaning kettle Size:B 8*8*30cm color:gray Material:PP Package Contents: 1* sprayer(1.5L) 1* opp bag Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.