---
product_id: 625947766
title: "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: "2155.61 DT"
currency: TND
in_stock: true
category: "Sunlu"
url: https://www.desertcart.tn/products/625947766-official-filament-dryer-s4-3d-printer-filament-dry-box-upgraded
store_origin: TN
region: Tunisia
---

# 350W rapid heating 3 fans for uniform drying 4 spools capacity 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:** 2155.61 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?** 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?** 2155.61 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-official-filament-dryer-s4-3d-printer-filament-dry-box-upgraded)

## 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.

## Description

Product Description SUNLU S4 FilaDryer — New Generation Filament Dryer Box

## 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 |
|---------------|-------|
| Brand | SUNLU |
| Colour | White S4 |
| Compatible devices | Laptop, Desktop |
| Item weight | 4 Kilograms |
| Material | Plastic Filament |
| Product dimensions | 21.1D x 21W x 21.1H centimetres |

## 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

![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)

## Available Options

This product comes in different **Color** options.

## 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

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**Shop now:** [https://www.desertcart.tn/products/625947766-official-filament-dryer-s4-3d-printer-filament-dry-box-upgraded](https://www.desertcart.tn/products/625947766-official-filament-dryer-s4-3d-printer-filament-dry-box-upgraded)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-28*