SUNLU Official Filament Dryer Box S4, 2025 Newest 4-Spool 3D Printer Filament Dryer, Upgraded 3 Circulating Fans/Auto Moisture Control/Fast Heating/Temperature Equalization, Black

["①【Large space for endless printing】Experience uninterrupted 3D printing with the new S4 Filadryer from SUNLU - the first filament dryer box that effortlessly handles 4 spools of 1 kg 3D printer filament simultaneously. With the next-generation filament drying box, we can enjoy the freedom of multi-color and multi-machine 3D printing.","②【Improved lightning-fast heating】With the impressive 350W PTC heating of the S4 filament drying box, you can heat up faster. In just 30 minutes, it heats up from 25℃ to 50℃, providing a 50% faster and more efficient heating than other filament drying boxes on the market. Efficiency meets speed for a next-generation 3D printing experience.","③【Triple safety for worry-free printing】Rest assured, because safety comes first in the S4 filament storage box. Its triple safety - PTC, temperature switch, and software protection - monitors temperatures and ensures a worry-free 3D printing environment with real-time alerts to unexpected changes.","④【Triple fans for uniform drying】SUNLU's new generation S4 filament dryer, equipped with three built-in fans - two circulating fans on the sides and one at the bottom. It ensures a temperature balance within the box of ±3℃, guaranteeing optimal drying for each section of the filament. Efficiently save your wet filaments.","⑤【Auto humidity control】Users of 3D printers can control the internal humidity in "Mode 2" (30% to 50%). The S4 dryer automatically starts drying when the humidity reaches the desired range, ensuring that your filament stays dry. If it drops below 25%, the drying stops to prevent excessive drying of the filament.","⑥【Universal compatibility】The S4 filament dryer is compatible with all FDM 3D printers and supports simultaneous connections with 4 printers, allowing 99.99% of filaments available on the market to fit. SUNLU has over 10 years of experience in the 3D printing industry and a professional after-sales team to make your printing worry-free."]