<b>What is the difference compared with other brand foam gun?</b><br> SOCSPARK foam gun is equipped with an additional valve. Open the valve when using. After using, close the valve before taking the foam bottle off. Then continue pushing the foam inside gun body out. Therefore, the gun will not be blocked even though you do not use cleaner. Save your money.<br><br> <b>Specifications:</b><br> -The maximum output pressure: 8 MPa<br> -The maximum injection flow rate: 5 L/min<br> -Spray width 3 mm<br><br> <b>Package Included:</b><br> -1 x Expanding Foam Sprayer<br> -2 x Free Extensions<br><br> <b>Warnings:</b><br> ▪ During operation, never point the foam gun at people or animals. <br> ▪ Wear suitable protective clothing, gloves and eye or face protection. <br> ▪ Keep away from children.<br> <br> <b>Operation Steps</b><br>1.Open the valve and connect foam can with the gun entrance, then rotate the gun to fasten.<br>2.Press the trigger to spray. <br>3.You can adjust the flow through rotating the controller. <br>4.When you finish spray, you have two choices. If you want to take foam can off, please close valve and keep pressing the trigger until no foam comes out, then take foam can off. If you want to keep the can attached, just put the gun away with an open valve.<br><br><b>User Manual:</b><br>Please download User Manual in "Technical Specification" or send us an email, we will send you User Manual.<br> <br>If you have any questions, please feel free to contact us through Amazon.