Creality Filament Dryer Box 4 Spools, Space Pi X4 Filament Storage Box
4.6Editor score
Holds four standard spools
Dual heating chambers
High temperature capability
In this guide
A Filament Dryer Box is essential for maintaining print quality by removing moisture from 3D printing materials. Without proper drying, filament can cause stringing, clogging, and poor adhesion during your projects.
We compared ten leading Filament Dryer Box models based on capacity, heating technology, temperature control, and user feedback. Our analysis focuses on features that matter most to hobbyists and professional makers alike.
Each pick highlights key strengths, specifications, and ideal use cases. Remember that prices fluctuate regularly, so check the current listings before making your final decision on any of these models.
Top 3 Picks for Best Filament Dryer Box
SUNLU Filament Dryer Box 2026 New Upgrade S1 Plus, Black
4.3Editor score
Fast drying with fan design
Visual LCD display screen
Adjustable temperature settings
Polymaker Polydryer Filament Storage Box
4.4Editor score
Sealed storage with desiccant
Built-in hygrometer included
Multi-filament ready design
Top 10 Best Filament Dryer Box in 2026 Compared
The following table provides a side-by-side comparison of all ten Filament Dryer Box models evaluated in this guide. Review the specifications to find the best fit for your printing workflow.
ProductsSpecificationsEditor scorePrice
Editor's Choice
SUNLU Filament Dryer Box 2026 New Upgrade S1 Plus, Black
Fan design for drying
35 to 55 Celsius
2 inch LCD display
Compatible with 1.75mm
4.3Editor score
Editor's Choice
Creality Filament Dryer Box 4 Spools, Space Pi X4 Filament Storage Box
Holds four spools total
200W heating chambers
Up to 85 Celsius
Dual independent chambers
4.6Editor score
Best Premium
Comgrow 3D Printer Filament Dryer Box, SH01 Filament Storage
Large storage volume size
40 to 50 Celsius
2 inch LCD screen
Silicone cable sheath
4.4Editor score
Polymaker Polydryer Filament Storage Box for 1kg PA Nylon PLA PETG ASA ABS
Sealed storage design
Built-in hygrometer feature
Desiccant support included
Compatible with 1.75mm
4.4Editor score
SUNLU Filament Dryer S2, Black
Touch screen interface
35 to 70 Celsius
Translucent lid check
High compatibility design
4.3Editor score
Comgrow Filament Dryer Box, SH02 Dry Box Filament Sealed Storage Box 3D Printer 2 Spools Holder
2 spool capacity
150W PTC heater
40 to 70 Celsius
360 degree heating
4.4Editor score
2026 New Creality Space PI Filament Dryer-Christmas Gifts
360 degree heating
110W PTC heater
45 to 70 Celsius
One key settings
4.4Editor score
2026 New Creality Space PI Filament Dryer Plus, Dual-Spool 3D Printing Filament Dryer Box
Dual spool design
110W PTC heater
45 to 70 Celsius
Real-time humidity
4.4Editor score
Creality Filament Dryer Box 4 Spools, Space Pi X4L Filament Storage Box
Holds four spools
200W heating chambers
Max 75 Celsius
Dual independent chambers
4.5Editor score
Official Creality Filament Dryer, Space Pi X4 Filament Storage Box
Four spools dry
Dual chambers independent
85 Celsius maximum
Energy saving mode
4.6Editor score
1. SUNLU Filament Dryer Box 2026 New Upgrade S1 Plus – Best Overall Filament Dryer Box
SUNLU Filament Dryer Box 2026 New Upgrade S1 Plus, Black
Fan design speeds drying
LCD display monitoring
Adjustable temperature range
High filament capacity
The SUNLU Filament Dryer Box 2026 New Upgrade S1 Plus ranks as our top choice for its balance of features and performance. With a 4.3 rating, it addresses common moisture issues effectively. The built-in fan design significantly speeds up the drying process compared to passive models.
Pros
- Fast drying capability
- Clear visual display
- Compatible with many materials
- Easy to operate
- Reliable after-sales support
Cons
- Limited to single spool
- Basic interface design
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Its 2-inch LCD screen provides real-time monitoring of temperature and humidity, giving you precise control over the drying environment. The adjustable temperature range of 35 to 55 degrees Celsius suits most common filaments like PLA and PETG. Compatibility extends to 1.75mm, 2.85mm, and 3.00mm diameters.
While it handles one spool at a time, the drying speed compensates for the lower capacity. The fan design ensures air circulation, preventing hot spots that could damage sensitive filaments. Some users might prefer a larger storage option for multiple prints.
For hobbyists needing reliable moisture removal without breaking the bank, this SUNLU model is highly recommended. It prevents stringing and clogging, ensuring smoother prints. Check the current price and availability to confirm it fits your budget before purchasing.
Fast Drying with Fan
The upgraded fan design speeds up the discharge of excess water from filaments, reducing the impact of wet weather on 3D printing.
Visual Display Features
Accurately detect and display temperature, time, and humidity in the 2-inch LCD screen for easy monitoring during operation.
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2. Creality Filament Dryer Box 4 Spools, Space Pi X4 Filament Storage Box – Best Premium Filament Dryer Box
Creality Filament Dryer Box 4 Spools, Space Pi X4 Filament Storage Box
Holds four spools
Dual heating chambers
Up to 85 Celsius
Real-time display
The Creality Space Pi X4 Filament Dryer Box stands out as our premium pick with a 4.6 rating. It holds four standard 1kg spools, making it ideal for high-volume users. The dual independent 200W heating chambers allow for advanced drying scenarios.
Pros
- Large capacity storage
- Dual independent chambers
- High temperature range
- Precise touch UI
- Maintains humidity control
Cons
- Higher price point
- Larger physical size
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With a maximum temperature of 85 degrees Celsius, this unit unlocks engineering filaments like ABS, PC, and PAHT that require higher heat. The industry-first drying scene touch UI offers precise customization for different filament types. You can monitor spools via an illuminated window without breaking the humidity seal.
While the price is higher, the ability to dry and store multiple spools simultaneously saves time and ensures consistent quality. The silicone-sealed enclosure prevents moisture re-absorption 24/7. The size and cost might be excessive for casual users with limited space.
Professional makers and studios benefit most from this model's capacity and temperature versatility. It extends filament shelf life and reduces waste significantly. Verify the dimensions and current pricing to ensure it meets your workspace requirements.
Spacious & Organized Storage
Holds 4 standard 1kg spools or 2 large 2kg spools, offering the ultimate solution for high-volume users needing organized storage.
Fast & Efficient Drying
Dual independent 200W heating chambers remove moisture 30% faster than single-chamber dryers for quick print-ready filament.
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3. Comgrow 3D Printer Filament Dryer Box, SH01 Filament Storage – Value Filament Dryer Box
Comgrow 3D Printer Filament Dryer Box, SH01 Filament Storage
Large storage volume
40 to 50 Celsius
2 inch LCD screen
Silicone sheath outlet
The Comgrow SH01 Filament Dryer Box offers a solid mid-range option with a 4.4 rating. It features a large storage volume capable of holding two 1kg spools simultaneously. The adjustable temperature range is set from 40 to 50 degrees Celsius, suitable for common filaments.
Pros
- Stores two spools
- Good sealing performance
- Clear LCD display
- Touch button controls
- Technical support available
Cons
- Limited max temperature
- Auto shut-off feature
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A 2-inch LCD screen with touch buttons makes operation straightforward. The outlet structure uses a silicone cable sheath and Teflon tube for smooth filament feeding. The upper cover has a snap button structure ensuring good sealing performance during storage periods.
Users should note the automatic shut-down feature if the work mode is not displayed, which adds safety but requires awareness. The maximum temperature of 50 degrees Celsius may limit use with high-temperature engineering plastics. Technical support is responsive for troubleshooting any issues.
This model fits well for users needing two spool capacity without the complexity of higher-end systems. It effectively removes moisture to avoid entanglement and clogging. Check the specific dimensions and settings to align with your printing needs before ordering.
Large Storage Volume
Inner size allows storage of 2 rolls of 1kg spools, compatible with PLA ABS SILK filament and standard diameters.
Real-time Monitoring
A 2-inch LCD screen and touch buttons make it easy to operate and clearly display temperature and time settings.
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4. Polymaker Polydryer Filament Storage Box – Best Budget Filament Dryer Box
Polymaker Polydryer Filament Storage Box
Sealed storage design
Built-in hygrometer
Desiccant support
Multi-filament ready
The Polymaker Polydryer Filament Storage Box is a unique passive option rated 4.4. Unlike active dryers, it combines a sealed enclosure with desiccant support to lock out moisture. This makes it an affordable choice for long-term storage needs between prints.
Pros
- Airtight enclosure design
- Includes hygrometer
- No power needed
- Supports desiccant
- Feeding while printing
Cons
- No active heating element
- Requires desiccant refills
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A built-in hygrometer allows you to track storage conditions easily without relying on guesswork. You can print without breaking the seal, meaning better moisture protection during pauses and overnight storage. It supports 1.75mm, 2.85mm, and 3.00mm filaments up to 1kg.
The main trade-off is the lack of active heating, so it cannot dry damp filament quickly. You must rely on the desiccant to maintain low humidity. Regular refills of the desiccant are necessary for continued effectiveness in humid environments.
Ideal for users who store filament in dry environments or need a low-cost backup storage solution. It helps reduce stringing and bubbling by keeping filament in a cleaner condition. Ensure you plan for desiccant maintenance to get the best results.
Seal + Desiccant Protection
Combines sealed enclosure design with desiccant support to help lock out moisture and protect filament between prints.
Humidity Monitoring
Track storage conditions more easily with the built-in hygrometer to judge and maintain a suitable environment.
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5. SUNLU Filament Dryer S2, Black – Large Capacity Filament Dryer Box
SUNLU Filament Dryer S2, Black
Touch screen interface
35 to 70 Celsius
Translucent lid check
High compatibility design
The SUNLU Filament Dryer S2 boasts a 4.3 rating with a focus on large capacity and ease of use. It heats up quickly to preset temperatures, while a built-in spindle ensures continuous filament spinning for even drying. The capacity accommodates multiple diameter types effectively.
Pros
- Fast heating element
- Large capacity size
- Customizable dry time
- Translucent lid check
- Revives damp filament
Cons
- Single spool limit
- Larger footprint
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Users can customize drying time from 0 to 99 hours and temperature from 35 to 70 degrees Celsius. The large touch screen interface simplifies setting adjustments for different filament types. A translucent lid allows visual checks without opening the unit.
While it is highly versatile, the size is larger than some competitors. It serves well for basements or humid locations where filament moisture is a frequent issue. The single spool limit might require multiple cycles for high-volume printing needs.
This dryer is excellent for reviving old filament and ensuring consistent print quality. It optimizes the printing process significantly. Confirm the physical dimensions to ensure it fits your workspace before purchase.
Keep Filament Dry During Printing
Used as a filament spool holder, it keeps filament dry during printing which is important for humid locations.
Fast Heating and Even Drying
Heats up quickly and uses a built-in spindle to ensure filament spins continuously for even drying results.
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6. Comgrow Filament Dryer Box, SH02 Dry Box – Advanced SH02 Filament Dryer Box
Comgrow Filament Dryer Box, SH02 Dry Box
2 spool capacity
150W PTC heater
40 to 70 Celsius
360 degree heating
The Comgrow SH02 Filament Dryer Box improves on the SH01 with a 4.4 rating and a 150W PTC heater. It can reach 50 degrees Celsius within 7 minutes. The 360-degree circulation ensures uniform heating. It supports two spools of 1KG filament simultaneously.
Pros
- Faster heater upgrade
- One key presets
- 360 degree heating
- Intelligent safety protection
- Great sealed design
Cons
- Limited temp max
- Requires careful setup
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One key temperature settings are available for 9 types of filaments including PLA, TPU, PETG, ABS, ASA, PVA, PC, PA, PP. Intelligent safety protection cuts off heating if the PTC exceeds 130 degrees Celsius. Multiple sealing rings prevent consumables from getting wet.
The max temperature of 70 degrees Celsius might limit high-temp engineering filaments. The new filament hole position is convenient for various extruder positions. It offers a good balance of energy efficiency and performance for multi-printer setups.
Choose this model if you need two spool capacity with fast heating and preset convenience. The safety features add peace of mind. Verify the current price and dimensions to ensure it suits your printing station.
360° PTC Fast Heater
Adopts 150W PTC heater which can heat up faster and are more energy-efficient with 360 degree circulation for uniform heating.
One Key Set
Has one-key temperature setting for 9 different types of 3D Printing filaments to start working immediately as expected.
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7. 2026 New Creality Space PI Filament Dryer – High-Temp Filament Dryer Box
2026 New Creality Space PI Filament Dryer
360 degree heating
110W PTC heater
45 to 70 Celsius
Power-off memory
The 2026 New Creality Space PI Filament Dryer holds a 4.4 rating with 360-degree hot-air heating. It uses a 110W PTC heater for uniform drying. The 3.7-inch touch screen supports switching between Celsius and Fahrenheit. One-key settings support 12 filament types.
Pros
- One key for 12 filaments
- LCD touch screen
- 48 hours timer
- Power-off memory
- Uniform drying
Cons
- Single spool design
- Fan required
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A 48-hour timer function allows flexible duration settings. The power-off memory function remembers settings after an outage. Compatible with most 1.75mm/2.85mm filaments including composites like PLA-CF and PA-CF. This helps avoid uneven drying common with pad heaters.
The unit requires a power source and fan to operate correctly. It fits well for users needing composite support without dual chambers. Check the power requirements and dimensions to confirm compatibility with your printer setup.
This dryer offers a good upgrade path for users seeking better heating distribution. It helps achieve a fast and high-quality printing experience. Review the current specs to ensure it meets your composite filament needs.
Upgraded PTC 360° Hot-air Heating
Circulates hot air 360 degrees for uniform heating, effectively drying moisture filaments and improving printing results.
One-key Set for 12 Filaments
Supports up to 12 types of filaments including composites like PLA-CF for convenient one-key temperature settings.
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8. 2026 New Creality Space PI Filament Dryer Plus – Dual-Spool Filament Dryer Box
2026 New Creality Space PI Filament Dryer Plus
Dual spool design
110W PTC heater
45 to 70 Celsius
Real-time humidity
The 2026 New Creality Space PI Filament Dryer Plus offers dual-spool capability with a 4.4 rating. It employs a 110W PTC heater for uniform drying. The real-time humidity monitor helps track conditions accurately. It supports 12 filament presets including composites.
Pros
- 360 degree heating
- Real-time humidity monitor
- 12 filament presets
- 48 hour timer
- Uniform drying
Cons
- Max temp 70 Celsius
- Requires stable power
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The adjustable temperature range is 45 to 70 degrees Celsius. The 48-hour timer function allows flexible drying sessions. The design supports high-speed printers and high-speed filaments. It aims to improve print quality by reducing moisture issues.
Users should note the maximum temperature of 70 degrees Celsius. For higher heat requirements, check other models with higher max temps. Ensure the dual spool fit matches your specific spool dimensions before purchase.
This model is suitable for users needing dual drying capacity with humidity monitoring. It helps achieve consistent high-quality prints. Verify the current price and availability to confirm it meets your budget.
Dual-Spool 3D Printing Filament Dryer Box
Supports dual spool capacity for improved workflow efficiency during multiple print jobs.
360° Hot-Air Heating
Circulates hot air 360 degrees for uniform heating, effectively drying moisture filaments and improving printing results.
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9. Creality Filament Dryer Box 4 Spools, Space Pi X4L – Multi-Spool Filament Dryer Box
Creality Filament Dryer Box 4 Spools, Space Pi X4L
Holds four spools
Dual independent chambers
Up to 75 Celsius
Real-time display
The Creality Space Pi X4L Filament Dryer Box holds four standard 1kg spools with a 4.5 rating. It features dual independent heating chambers for advanced drying scenarios. The maximum temperature is 75 degrees Celsius, unlocking engineering filaments. A real-time display provides precise control.
Pros
- High capacity storage
- Dual independent chambers
- High temperature range
- Sealed enclosure design
- Precise touch UI
Cons
- Higher price point
- Requires significant space
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Dual functionality allows for active drying and storage maintaining humidity during pauses. Silicone-sealed enclosure prevents moisture re-absorption. Monitor spools via an illuminated window without breaking humidity control. This reduces waste and ensures consistent high-quality prints.
The size is substantial and requires dedicated workspace. The price reflects the high capacity and features. It is ideal for high-volume users needing multiple spools ready for different projects. Check dimensions to ensure fit.
Choose this model for professional workflows requiring multiple material options on hand. It extends filament shelf life significantly. Verify the current price and availability to confirm it meets your budget and space needs.
Spacious & Organized Storage
Holds 4 standard 1kg spools or 2 large 2kg spools for ultimate organization and capacity for high-volume users.
Fast & Efficient Drying
Dual independent heating chambers remove moisture 30% faster than single-chamber dryers for quick print-ready results.
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10. Official Creality Filament Dryer, Space Pi X4 – High-Temp Filament Dryer Box
Official Creality Filament Dryer, Space Pi X4
Holds four spools
Dual chambers independent
Up to 85 Celsius
Energy saving mode
The Official Creality Filament Dryer, Space Pi X4 is a top-tier unit rated 4.6. It has dual independent heating chambers and reaches up to 85 degrees Celsius. This ensures effective drying of engineering filaments like PA, PAHT, and PC. It saves up to 40% energy in single-chamber mode.
Pros
- Maximum temperature range
- Independent chamber control
- High capacity storage
- Energy saving modes
- RFID compatible trays
Cons
- Requires heat-resistant trays
- Higher initial cost
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Eight filament holes and PTFE tubing allow printing on four printers simultaneously. Dual chambers allow simultaneous drying of two filament types at different temperatures. Use Creality high quality RFID filament with plastic trays for best results as per note.
The note specifies ensuring other brands trays are heat resistant. It is an ideal solution for industrial or multi-studio environments. Check compatibility with your existing filament and tray setup before purchasing to avoid issues.
This model is perfect for professional setups demanding maximum flexibility and temperature control. It extends filament shelf life. Verify the current price and dimensions to ensure it fits your workspace.
Dual Chambers Independent Temperature Control
Each chamber is equipped with an independent PTC heater, allowing simultaneous drying of two filament types at different temperatures in one machine.
200W+200W PTC Heats Up to 85℃
Dual 200W PTC heaters paired with insulated chambers improve heating efficiency, allowing temperatures to reach up to 85°C.
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Buying Guide – How to Choose the Best Filament Dryer Box
Selecting the right Filament Dryer Box depends on several key factors including capacity, heating technology, and control features. This section breaks down what to look for.
Heating Technology
Look for PTC heaters which offer rapid heat up and energy efficiency. Some models use fans to circulate hot air for uniform 360-degree drying. This prevents hot spots that can damage sensitive filaments during the process.
Choose PTC and fan systems for best performance and safety.
Temperature Range
Ensure the maximum temperature covers all your filament types. Basic units cap at 50 to 60 degrees Celsius for common plastics. Engineering filaments like ABS or PC may need up to 85 degrees Celsius to dry effectively.
Check the max temperature to match your filament needs.
Capacity and Size
Capacity varies from single spool to four spools at once. Larger capacity allows for more prints without reloading. Ensure the physical dimensions fit your workspace and printer setup comfortably.
Select size based on spool count and available space.
Display and Control
LCD touch screens simplify setting temperature and time. Some models feature one-key presets for common filament types. This reduces guesswork and ensures accurate drying cycles for consistent results.
Opt for touch interfaces or preset buttons for ease of use.
Sealing and Monitoring
Airtight seals prevent moisture re-absorption during storage. Built-in hygrometers allow you to track humidity levels. These features protect filament between prints and extend overall shelf life.
Prioritize sealed designs with humidity monitoring tools.
Safety and Protection
Intelligent safety features like auto shut-off and overheat protection add reliability. These prevent damage to the dryer and potential hazards during operation. Ensure the unit has adequate ventilation and cooling.
Choose models with safety protections for reliable operation.
Compatibility and Fit
Check compatibility with filament diameters like 1.75mm or 2.85mm. Ensure the outlet structure fits your extruder setup. Some units are designed to feed directly into specific printer positions.
Verify diameter support and outlet fit for your printer.
Price and Value
Higher capacity and advanced features come at a premium. Balance your budget against the expected savings in material waste. Long term use often justifies the initial investment for frequent printers.
Weigh features against long term value and budget.
How to Use and Care for Your Filament Dryer Box
Place the filament spool inside the dryer box ensuring the filament end feeds through the outlet hole. Close the lid securely to maintain the sealed environment needed for effective moisture removal during the process.
Set the desired temperature and drying time based on your filament type. Start the unit and wait until the cycle is complete. You can monitor progress via the display or presets provided on the device.
Regularly check and clean the unit to prevent dust buildup. If using a desiccant system replace the desiccant periodically. Ensure the seals remain intact to protect your filament over the long term.
Frequently Asked Questions
Do I need to dry all filaments before printing?
Not all, but moisture sensitive ones like Nylon and TPU definitely benefit from drying. Common PLA and PETG may only need drying if stored in humid conditions. Use a hygrometer to decide when drying is necessary.
How long should I dry my filament?
Most filaments require 4 to 6 hours at the appropriate temperature. High moisture materials like Nylon may take longer. Check the specific recommendations for your filament type before starting the cycle.
Can I print while the filament is in the dryer box?
Yes, most models allow feeding filament through the outlet during drying. This maintains a dry environment during pauses or overnight storage. Ensure the seal remains intact to prevent moisture re-absorption.
What is the best temperature for drying PLA?
PLA usually requires a temperature between 45 and 55 degrees Celsius. Avoid exceeding 60 degrees as it can deform the filament. Consult your manufacturer guidelines for specific drying recommendations.
Can a dry different filament types at once?
Most standard units require one filament type at a time to avoid cross contamination. Advanced dual chamber models allow two different types at different temperatures. Choose a dual chamber model if you need this flexibility.
Is a built-in hygrometer worth the cost?
Yes, it helps monitor humidity levels to ensure your filament stays dry. It removes guesswork and ensures consistent drying conditions. This feature is valuable for high precision printing environments.
Final Thoughts on Choosing the Best Filament Dryer Box
We highlighted the SUNLU Filament Dryer Box 2026 New Upgrade S1 Plus as the top pick for its balance of features. The Creality Space Pi X4 offers the best premium option with high capacity and temperature. Polymaker Polydryer stands out as the best budget storage solution.
Prioritize heating technology and temperature range when selecting your unit. Ensure the capacity matches your printing volume and workspace size. Look for safety features and monitoring tools to protect your filament investment.
Prices and availability can change quickly so check the current listings before you buy. Verify dimensions and compatibility with your filament types to ensure a smooth transition. Your prints will thank you for the extra care.