SUNLU Filament Dryer Box 2026 New Upgrade S1 Plus
4.3Editor score
Fast drying with built-in fan
Visual LCD temperature display
Compatible with multiple diameters
In this guide
Filament dryers are essential tools for maintaining print quality by removing moisture from spools. A good model offers precise temperature control and consistent airflow to prevent issues like stringing or bubbling.
We evaluated ten leading filament dryer box options based on heating efficiency, capacity, and user interface. Our analysis focuses on models that balance performance with ease of use for various printing environments.
Each pick highlights unique strengths such as dual chamber drying or large spool storage. Please note that prices and availability may change over time so verify details before purchasing.
Top 3 Picks for Best Filament Dryer Box
Creality Filament Dryer Box 4 Spools Space Pi X4
4.6Editor score
Dual independent heating chambers
Holds up to four spools
Precise temperature control UI
Official Creality Filament Dryer Space Pi X4
4.6Editor score
Eight filament holes for printing
Dual PTC heaters for efficiency
High temperature capability up to 85C
Top 10 Best Filament Dryer Box in 2026 Compared
The following comparison table outlines key specifications for each selected filament dryer box to help you quickly identify the model that best fits your specific printing requirements.
ProductsSpecificationsEditor scorePrice
Best Budget
SUNLU Filament Dryer Box S1 Plus
Max Temp 55C
Fan Assisted Drying
LCD Touch Screen
Single Spool Capacity
4.3Editor score
Editor's Choice
Creality Filament Dryer Box Space Pi X4
Max Temp 85C
Dual Heating Chambers
4 Spool Capacity
Touch UI Display
4.6Editor score
Best Premium
Comgrow 3D Printer Filament Dryer Box SH01
Max Temp 50C
2 Spool Capacity
LCD Screen
Silicone Cable Outlet
4.4Editor score
Polymaker Polydryer Filament Storage Box
Hygrometer Included
Airtight Sealed Design
Desiccant Support
Storage Focused
4.4Editor score
SUNLU Filament Dryer S2
Max Temp 70C
Touch Screen Interface
Translucent Lid
Large Internal Volume
4.3Editor score
Comgrow Filament Dryer Box SH02
Max Temp 70C
360 PTC Heater
9 Filament Presets
Dual Spool Support
4.4Editor score
Creality Space PI Filament Dryer
Max Temp 70C
12 Filament Presets
Power-off Memory
3.7 Inch Screen
4.4Editor score
Creality Space PI Filament Dryer Plus
Max Temp 70C
Real-Time Humidity Monitor
360 Hot-Air Heating
Dual Spool Design
4.4Editor score
Creality Space Pi X4L Filament Storage Box
Max Temp 75C
Dual Independent Chambers
4 Spool Capacity
30% Faster Drying
4.5Editor score
Official Creality Filament Dryer Space Pi X4
Max Temp 85C
8 Filament Holes
Dual PTC Heaters
Power Saving Modes
4.6Editor score
1. SUNLU Filament Dryer Box S1 Plus – Best Budget Filament Dryer Box
SUNLU Filament Dryer Box S1 Plus
Temperature Range 35 to 55 C
LCD Screen for Display
Fan for Faster Drying
Capacity Fits Standard Spools
The SUNLU Filament Dryer Box S1 Plus offers an accessible entry into active filament drying. Its visual display allows users to monitor conditions easily without guesswork.
Pros
- Affordable entry point
- Visual temperature control
- Fan accelerates drying
- Simple button interface
Cons
- Lower max temperature
- Limited spool capacity
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Key strengths include the integrated fan which significantly speeds up the moisture removal process. The adjustable temperature range covers common materials like PLA and PETG effectively.
Trade-offs involve a lower maximum temperature compared to engineering grade options. It holds fewer spools than bulk storage models which may limit high volume users.
This model is ideal for hobbyists needing reliable drying for standard prints. Its simplicity and affordability make it a strong choice for general purpose use.
Fast Drying with Fan
The built-in fan design accelerates the discharge of excess water from filaments to reduce wet weather impacts on printing.
Visual Display
An LCD screen accurately detects and displays temperature and humidity allowing for precise control over the drying environment.
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2. Creality Filament Dryer Box Space Pi X4 – Editor's Choice Filament Dryer Box
Creality Filament Dryer Box 4 Spools Space Pi X4
Temperature Range 50 to 85 C
Dual Heating Chambers
Touch UI Control
Fits 4 Spools
The Creality Space Pi X4 stands out with dual independent heating chambers allowing for versatile temperature management. This feature supports drying multiple filament types simultaneously without cross contamination.
Pros
- Dual independent chambers
- High max temperature
- Large capacity storage
- Touch screen interface
Cons
- Higher price point
- Requires more desk space
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Strengths include industry-first touch UI for precise control and a high temperature cap suitable for engineering filaments. The spacious interior holds four standard spools efficiently for busy workflows.
It requires a larger footprint and represents a higher investment. However the ability to handle high temperature materials justifies the cost for serious makers.
Ideal for users needing high capacity and advanced drying capabilities. It balances storage and active drying well for professional or enthusiast printing.
Dual Independent Heating Chambers
Two 200W heating chambers allow moisture to be removed 30% faster than single chamber dryers for efficient processing.
Precise Temperature Control
Industry-first touch UI lets users customize temperatures precisely for various materials like PLA or engineering ABS with ease.
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3. Official Creality Filament Dryer Space Pi X4 – Best Premium Filament Dryer Box
Official Creality Filament Dryer Space Pi X4
Temperature Range Up to 85 C
Eight Filament Holes
Dual PTC Heaters
Power Saving Modes
Official Creality Space Pi X4 offers extensive multi-printer connectivity with eight filament holes and dual PTC heaters. It is designed for maximum efficiency in multi-unit setups.
Pros
- Eight filament holes
- High temperature capability
- Energy saving modes
- Official brand support
Cons
- Requires heat resistant trays
- Premium price point
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Strengths include the ability to reach 85C for engineering filaments and power saving modes for single or dual chamber operation. It provides robust support for high-performance materials.
Users must ensure plastic trays are heat resistant to avoid damage. The premium cost is a factor but the performance gains are significant.
Best for high-end setups needing rapid simultaneous drying. It ensures continuous effective drying for complex materials like PAHT or PC.
Eight Filament Holes
Eight holes and PTFE tubing allow drying multiple filaments and printing on four printers at the same time for peak efficiency.
Energy Efficient Drying
Users can choose single or dual chamber modes saving up to 40% energy for eco-friendly and cost-effective operation.
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4. Comgrow SH01 Filament Dryer Box – Detailed Review
Comgrow 3D Printer Filament Dryer Box SH01
Max Temp 50C
LCD Screen Display
Two Spool Capacity
Silicone Cable Sheath
The Comgrow SH01 offers a large storage volume for two 1kg spools with a clear LCD screen for monitoring. It aims to prevent entanglement and clogging effectively.
Pros
- Large storage volume
- Real-time monitoring
- Sealed outlet design
- Touch button control
Cons
- Auto shut down feature
- Max temp limited to 50C
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Key strengths include a sealed outlet with silicone sheath to keep consumables dry when not in use. The touch buttons make adjusting time and temperature straightforward.
The motherboard auto shut down after three minutes if work mode is not displayed may require setup attention. The max temperature is lower than engineering needs.
Recommended for users printing standard materials who need reliable moisture removal. The sealing design helps maintain dry conditions during pauses.
Large Storage Volume
The dryer box stores two rolls of 1kg spools and works perfectly with standard filament diameters.
Real-time Monitoring
A 2-inch LCD screen displays temperature and humidity to make operation more comprehensive and clear.
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5. Polymaker Polydryer – Detailed Review
Polymaker Polydryer Filament Storage Box
Hygrometer Included
Airtight Seal
No Active Heating
Desiccant Support
The Polymaker Polydryer focuses on storage with an airtight seal and hygrometer to track humidity levels. It helps keep filaments dry between uses without active heat.
Pros
- Built-in hygrometer
- Airtight design
- Simple to use
- Consistent protection
Cons
- No active heating
- Desiccant replacement needed
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Key strengths include consistent filament protection by reducing exposure to humid air. It is designed to be used while printing without breaking the seal.
It lacks active heating so it is best for already dry spools or maintenance storage. Desiccants must be monitored for effectiveness over time.
Ideal for users seeking passive protection during pauses. It is simple to use and fits neatly into any workspace.
Seal + Desiccant Protection
The airtight filament storage solution combines sealed enclosure design with desiccant support to help lock out moisture.
Humidity Monitoring
Use the built-in hygrometer to track storage conditions easily without relying on guesswork alone.
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6. SUNLU Filament Dryer S2 – Detailed Review
SUNLU Filament Dryer S2
Touch Screen Interface
Large Internal Volume
Translucent Lid
Up to 70C
The SUNLU S2 offers a large capacity and translucent lid allowing users to check on filament without opening. It emphasizes user-friendly operation with a large touch screen.
Pros
- Large capacity
- Translucent lid
- Simple touch screen
- Spindle for even drying
Cons
- No humidity display
- Slightly higher price
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Key strengths include the built-in spindle ensuring the filament spins continuously for even drying. The customizable drying time and temperature options cover most material needs.
It does not display humidity levels which limits real-time monitoring. The price is higher than basic models but the features justify it.
Recommended for users valuing visibility and large storage. The simple interface ensures quick drying and superior printing results.
Keep Filament Dry During Printing
The dryer can be used as a filament spool holder during printing to improve print quality especially in humid locations.
Fast Heating and Even Drying
The unit heats up quickly and the built-in spindle ensures the filament spins continuously for even drying results.
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7. Comgrow SH02 Filament Dryer Box – Detailed Review
Comgrow Filament Dryer Box SH02
150W PTC Heater
360 Degree Circulation
Nine Filament Presets
Sealing Rings
The Comgrow SH02 adopts a 150W PTC heater for faster energy-efficient heating compared to previous models. It features a built-in fan for 360 degree air circulation for uniform results.
Pros
- Fast heating
- Uniform air circulation
- One key presets
- Intelligent safety
Cons
- Fan alarm if stops
- Complex sealing rings
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Key strengths include one key set for nine types of filaments and intelligent safety protection that cuts off heating if temperatures exceed limits. Multiple sealing rings prevent consumables from getting wet.
The alarm sounds if the fan stops which adds safety but requires attention. The sealing rings may require inspection during setup.
Ideal for users needing quick drying for multiple materials. The intelligent safety features prevent module burn out effectively.
360 Degree PTC Fast Heater
The newly designed heater uses a built-in fan to circulate hot air 360 degrees for uniform heating and better results.
One Key Set
Just press one key to choose the filament type and the drying box will start working as you expected immediately.
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8. Creality Space PI Filament Dryer – Detailed Review
Creality Space PI Filament Dryer
3.7 Inch Touch Screen
Twelve Filament Presets
Power-off Memory
Up to 70C
The Creality Space PI features a large 3.7-inch touch screen for easy operation and tracking drying conditions. It includes power-off memory to remember settings after outages.
Pros
- Large touch screen
- Power-off memory
- One-key presets
- 360 heating
Cons
- Fixed timer max
- No humidity monitor
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Key strengths include one-key settings for twelve types of filaments and 360 hot-air heating for uniform drying. The screen supports switching between Celsius and Fahrenheit.
It lacks a humidity monitor which limits precise environmental tracking. The timer max is 48 hours which may limit long drying sessions.
Recommended for users needing preset convenience and memory features. The large screen makes it simple to track drying conditions effectively.
Power-off Memory Function
The filament dehydrator can restart and still remember your previous material and temperature settings after a power outage.
One-key Set for 12 Filaments
Creality filament dryer has one-key temperature settings for different filament types including common and high-performance composites.
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9. Creality Space PI Plus Filament Dryer – Detailed Review
Creality Space PI Filament Dryer Plus
Real-Time Humidity Monitor
Dual Spool Design
Twelve Filament Presets
Up to 70C
The Creality Space PI Plus adds a real-time humidity monitor to the standard model allowing users to track storage conditions precisely. It supports up to 12 filament presets.
Pros
- Real-time humidity
- Large touch screen
- High capacity presets
- 360 hot-air
Cons
- No dual heating
- Limited max temp
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Key strengths include the large 3.7-inch touch screen and 360 hot-air heating for uniform results. The dual spool design fits standard needs well.
It does not offer dual heating chambers for different temps. The max temperature of 70C limits engineering filaments.
Ideal for users needing humidity visibility. The 12 filament presets cover common and high-performance composite needs.
Real-Time Humidity Monitor
The unit offers a real-time humidity monitor to track drying conditions and ensure consistent high-quality prints.
One-key Set for 12 Filaments
Creality filament dryer has one-key temperature settings for different filament types including common and high-performance composite.
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10. Creality Space Pi X4L – Detailed Review
Creality Space Pi X4L Filament Storage Box
Dual Independent Chambers
Up to 75C
Four Spool Capacity
Rapid Drying
The Creality Space Pi X4L offers dual independent heating chambers capable of up to 75C. It supports four spools providing ample capacity for high-volume users.
Pros
- High capacity
- Dual chambers
- Silicone-sealed
- Illuminated window
Cons
- Premium price
- Space required
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Key strengths include rapid drying that removes moisture faster and a silicone-sealed enclosure to prevent re-absorption. An illuminated window lets users monitor spools without breaking humidity control.
The price is higher due to dual chamber capability. It requires significant desk space for installation and use.
Ideal for users needing advanced drying for engineering filaments. The dual chambers unlock advanced materials effectively.
Spacious & Organized Storage
Holds 4 standard 1kg spools or 2 large 2kg spools for ultimate capacity for high-volume users.
Precise Temperature Control
The touch UI allows customization of temps for common filaments and higher temps for advanced filaments like ABS.
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Buying Guide – How to Choose the Best Filament Dryer Box
Selecting the right filament dryer box involves evaluating temperature capabilities, capacity, and control interfaces to ensure consistent print quality across various materials.
Temperature Range
A good filament dryer box should offer a temperature range that covers both common materials like PLA and engineering options like ABS or Nylon. Higher temperatures ensure rapid drying for moisture sensitive filaments.
Look for models supporting at least 70C to handle most materials effectively.
Capacity
Capacity determines how many spools can be dried at once. Small boxes hold one spool while larger units support four or more allowing simultaneous preparation.
Choose based on your workflow volume to avoid frequent reloads.
Heating Method
Heating methods vary from single coils to dual independent chambers. PTC heaters are energy efficient and provide even distribution reducing hot spots.
Dual chambers offer flexibility for drying different filament types separately.
User Interface
A clear interface simplifies setting temperature and duration. Touch screens or digital displays provide better control over physical buttons.
Ensure the interface allows easy access to presets for common materials.
Sealing
Effective sealing prevents moisture re-absorption after drying. Silicone seals or airtight designs are crucial for maintaining dryness during storage.
Check for sealed outlets that keep consumables dry when not in use.
Safety Features
Safety features such as over-heat protection or auto shut-off prevent fire risks. These are vital for unattended drying sessions.
Prioritize models with intelligent monitoring systems.
Compatibility
Ensure the dryer fits standard spool sizes and diameter requirements. Some boxes support 1.75mm while others accommodate 2.85mm.
Confirm compatibility with your specific filament types before buying.
Additional Features
Features like humidity monitors or power-off memory add convenience. These details enhance usability especially during outages.
Look for extra tools that simplify daily maintenance tasks.
How to Use and Care for Your Filament Dryer Box
Place the spool inside the dryer ensuring it spins freely. Close the lid securely to maintain an airtight environment.
Set the desired temperature and duration based on your filament type. Start the drying cycle and allow the fan to circulate air evenly.
Regularly check the seals and clean the interior to prevent dust accumulation. Replace desiccants if the unit supports them for extended storage.
Frequently Asked Questions
Do filament dryer boxes remove moisture during printing?
Yes many filament dryer boxes act as storage holders allowing drying during the print process. This ensures consistent material quality without manual reloading.
What is the ideal temperature for drying PLA?
PLA typically dries best between 45C and 55C. Avoid higher temperatures to prevent warping or softening of the material.
How long should I dry PETG filament?
PETG usually requires 4 to 8 hours depending on moisture levels. Verify dryness by checking for absence of bubbling during the first layer.
Can I use a dryer box for ABS?
Yes ABS requires higher temperatures around 60C to 70C. Ensure your dryer supports these ranges to avoid insufficient drying.
Is a built-in hygrometer necessary?
A hygrometer helps monitor humidity levels but is not strictly required. It adds precision to maintenance without active control.
How do I clean the dryer box?
Wipe the interior with a dry cloth to remove dust. Ensure seals are free of debris to maintain proper airtight conditions.
Does it work with 2.85mm spools?
Most modern dryer boxes support both 1.75mm and 2.85mm spools. Verify specific capacity details in the product description before purchasing.
Final Thoughts on Choosing the Best Filament Dryer Box
The top picks cover budget options and premium dual chamber solutions to suit diverse needs. Each model offers reliable moisture removal to enhance print consistency.
Prioritize temperature range and sealing efficiency when comparing models to ensure durability and effectiveness over time.
Please verify current prices and availability as they may change. Select the dryer that aligns best with your specific filament workflow.