SCULPFUN S9 Upgrade Kit High Velocity Air-Assisted Nozzle: Like the S10 nozzle, this is a high-velocity air-assisted nozzle with an advanced fluid mechanics design. Only 30L/min air pump can achieve 13.5m/s high speed airflow. SCULPFUN S9 Upgrade Kit Excellent air sealing: The S9 nozzle has a sealing ring, and the air pump air does not leak out of the gap. In addition, the sealing keeps dust out, which increases the lifespan of the S9 lens. Complete Accessories for Air-Assist Upgrade: The package includes SCULPFUN S9 Air-Assist Nozzle, Air Tube, Sealing Ring and other installation accessories you need. You don't need to buy any additional accessories to upgrade the S9 machine directly. Please check if your laser module includes the iconic cone shell before purchasing. If your S9/S6 Pro has the conical part shown in the main picture, it can use the S9 air assist valve. As shown in the second picture of the product, SCULPFUN engraving machines before October 2021 are not suitable for S9 air assisted air nozzles, S9/S6 Pro engraving machines after October 2021 can be upgraded with the new S9 air assisted air nozzles. Faster and Cleaner: The S9 air assist greatly improves the cutting ability of the S9 laser. With air assist, S9 cuts plywood and MDF 2-3 times faster, and the cut surfaces are cleaner and smoke-free. (The air pump is not included in this package) Official SCULPFUN S9 Air Assist: It is an all-metal structure and perfectly matches the S9 laser. Installation is very easy and it only takes you few minutes to install. Specification: Model: SCULPFUN S9 Air Assist Kit Interface diameter size: Air assisted copper tube outer diameter: 8mm Trachea inner diameter: 7.5mm Air pump: Note that you need to check if the voltage is the same as your local voltage when you buy the kit that includes an air pump. US 110V version, European 220V version, please choose the correct version. Package Weight: 1.75kg Package Size: 255 x 192 x 145mm/10 x 7.5 x 5.7inch Packing List: 1 x 30L/min Air Pump US Version 110V 1 x S9 nozzle set 1 x 2 meter air line 1 x tool kit 1 x manual