--- product_id: 625947766 title: "SUNLU Official Filament Dryer S4, 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White" brand: "sunlu" price: "2560.89 DT" currency: TND in_stock: true reviews_count: 11 url: https://www.desertcart.tn/products/625947766-sunlu-official-filament-dryer-s4-3d-printer-filament-dry-box store_origin: TN region: Tunisia --- # 350W rapid heating 3 fans for uniform drying 4 spools capacity SUNLU Official Filament Dryer S4, 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White **Brand:** sunlu **Price:** 2560.89 DT **Availability:** ✅ In Stock ## Summary > 🔥 Keep your filament fresh, your prints flawless, and your 3D game ahead of the curve! 🎯 ## Quick Answers - **What is this?** SUNLU Official Filament Dryer S4, 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White by sunlu - **How much does it cost?** 2560.89 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/625947766-sunlu-official-filament-dryer-s4-3d-printer-filament-dry-box) ## Best For - sunlu enthusiasts ## Why This Product - Trusted sunlu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Spool Mastery:** Dry up to 4 filament spools simultaneously for uninterrupted, multi-color 3D printing freedom. - • **Lightning-Fast Heat-Up:** 350W PTC heater powers from 25℃ to 50℃ in just 30 minutes—50% faster than competitors. - • **Triple-Layer Safety Shield:** PTC, temperature switch, and software protection combine for real-time, worry-free temperature control. - • **Smart Auto Humidity Control:** Automatically starts/stops drying between 30%-50% humidity to prevent filament damage and optimize print quality. - • **Precision Drying with Triple Fans:** Three built-in fans maintain ±3℃ temperature balance, ensuring every filament inch is perfectly dried. ## Overview The SUNLU Official Filament Dryer S4 is a cutting-edge 3D printer filament dry box designed to handle 4 spools simultaneously. Featuring a powerful 350W PTC heater, it heats up 50% faster than typical dryers, while triple fans ensure uniform drying with precise temperature control within ±3℃. Its smart auto humidity system maintains optimal filament moisture levels, preventing print failures. Enhanced with triple safety protections, this sleek white storage box guarantees worry-free, professional-grade filament conditioning for millennial makers and managers who demand efficiency and reliability. ## Features - ①【4 Spools in 1 Box】Experience uninterrupted 3D printing with SUNLU New S4 Filadryer– the first filament dryer box that effortlessly handles 4 spools 1KG 3D Printer Filament simultaneously.With the new generation filament drying box, we can embrace the freedom of multi-color and multi-machine 3d printing. - ②【Updraded Lightning-Fast Heating】Get to heating quicker with the S4 filament dry box's impressive 350W PTC heater. In just 30 minutes, it heats up from 25℃ to 50℃, ensuring 50% faster and more efficient heating than other filament dryer box in the market. Efficiency meets speed for a next-generation 3d printing experience. - ③【Triple Security for Worry-free Printing】Rest easy knowing the S4 filament storage box prioritizes your safety. Its triple-layer security – PTC, temperature switch, and software protection – keeps a vigilant eye on temperatures, ensuring a worry-free 3d printing environment with real-time alerts for any unexpected changes. - ④【Triple Fans for Uniform Drying】SUNLU New generation S4 filament dehydratorr equipped with three build-in fans – two circulating fans on the sides and 1 on the bottom. It maintains a temperature balance inside the box within ±3℃, guaranteeing optimal drying for every section of the filament. Efficiently rescue your wet filaments. - ⑤【Smart Auto Humidity Control】3D printing users can adjust the internal humidity by mode 2(humidity range 30%~50%). The S4 dryer will auto start drying when humidity hits your desired range, ensuring your filament stays dry. And will stop drying when humidity below 25%, catering to avoid excessive drying of the filament. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0CXTD88X2 | | Best Sellers Rank | 5,113 in Business, Industry & Science (See Top 100 in Business, Industry & Science) 411 in Filament 3D Printing Materials | | Brand | SUNLU | | Colour | White S4 | | Customer Reviews | 4.6 4.6 out of 5 stars (120) 4.6 out of 5 stars | | Date First Available | 12 Mar. 2024 | | Guaranteed Software Updates Until | unknown | | Item Weight | 4 kg | | Manufacturer | SUNLU | | Manufacturer Part Number | FD-S4-WT-EU | | Material Type | Plastic Filament | | Model Number | SUNLU Sécheur à filament S4 | | Package Dimensions | 51.5 x 35.5 x 28 cm; 4 kg | ## Product Details - **Brand:** SUNLU - **Colour:** White S4 - **Item weight:** 4 Kilograms - **Material:** Plastic Filament - **Product dimensions:** 21.1D x 21W x 21.1H centimetres ## Images ![SUNLU Official Filament Dryer S4, 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White - Image 1](https://m.media-amazon.com/images/I/61wMFCieieL.jpg) ![SUNLU Official Filament Dryer S4, 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White - Image 2](https://m.media-amazon.com/images/I/71qKO7FOH1L.jpg) ![SUNLU Official Filament Dryer S4, 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White - Image 3](https://m.media-amazon.com/images/I/71y6HP6vTXL.jpg) ![SUNLU Official Filament Dryer S4, 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White - Image 4](https://m.media-amazon.com/images/I/71PoEoeASVL.jpg) ![SUNLU Official Filament Dryer S4, 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White - Image 5](https://m.media-amazon.com/images/I/71+EB+OSoHL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Dryer *by on Reviewed in the United Kingdom 3 May 2026* I've had this for about 6 months. It drys filament very well and is very cheap on electricity (maybe 1p-2p and hour GBP). It take four reals and has ports where the filament can remain in the device, but can fees into my 3D printer. ### ⭐⭐⭐⭐⭐ The Sunlu S4 dryer is an impressive and budget-friendly option *by on Reviewed in the United Kingdom 19 September 2025* The Sunlu S4 dryer is an impressive and budget-friendly option for both beginners and seasoned hobbyists. It offers a solid build quality, and a user-friendly interface. The setup is straightforward, and the quality is decent for the price, it provides excellent value for money, especially for those just starting with 3D printing or those looking for a reliable dryer holds 4 rolls ### ⭐⭐⭐⭐⭐ Works exactly as it should *by on Reviewed in the United Kingdom 25 October 2024* Very pleased I bought this, had a few problems with damp filament, but this sorted it out. Easy to use, great price and you can dry 4 kg at the same time (4x 1kg reels) ## Frequently Bought Together - SUNLU Official Filament Dryer S4, 2025 Newest 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control/Fast Heating/Temperature Balance, Filaments Storage Box White - ELEGOO PLA+ Filament 1.75mm Black 1KG, PLA Plus Tougher and Stronger 3D Printer Filament, Dimensional Accuracy +/- 0.02mm, 1kg Cardboard Spool(2.2lbs) for Most FDM 3D Printers --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/625947766-sunlu-official-filament-dryer-s4-3d-printer-filament-dry-box](https://www.desertcart.tn/products/625947766-sunlu-official-filament-dryer-s4-3d-printer-filament-dry-box) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-19*