New Dual Blower Kit

This 3D Printer blower is perfectly fit for LONGER LK4/LK4 PRO/LK1/LK5 PRO and is compatible with U20/U30/U30 PRO 3D Printer; The new dual blower kit improves the quality of printing, have strong power on the cooling nozzle to get a better and smooth surface of the model; The kit is included the following spare parts: 4010 Fan x 1PC Turbo Blower x 2PCS Pulley Wheel x 3PCS Sleeves of Wheel x 3PCS Case x 1Set   You can download the stl file of the nozzle of the double blower through the link below: Left Nozzle: https://drive.google.com/file/d/1yqjG3E7_6WBE0p3XVxowqJh-Zi6xplny/view?usp=sharing Right Nozzle: https://drive.google.com/file/d/1zYk0OHebiy2Wme_ykDt5B9tHUpnVKu0H/view?usp=sharing