TPU absorbs moisture quickly, which can lead to stringing, bubbling, inconsistent extrusion, and weak prints. A capable filament dryer helps restore and maintain material quality before and during printing.
We compared 10 popular dryer boxes from Creality, SUNLU, Comgrow, and Sovol, focusing on temperature control, capacity, heating performance, storage, and everyday usability.
Best 10 Filament Dryer for Tpu Picks for 2026
Best Overall
Creality Space Pi SE Filament Dryer
- 45–65°C adjustable range
- 1 kg spool capacity
- Humidity display and 0–24-hour timer
Best For: One-spool TPU drying with simple controls
Best High-Capacity Single-Spool
- 35–70°C temperature range
- 0–99-hour timer
- Rotating spindle for even drying
Best For: Flexible TPU drying and printing from the box
Best for Two Spools
- Dries two 1 kg spools
- Up to 70°C with 150W PTC heating
- Presets for nine filament types
Best For: Multi-spool drying and dual-printer workflows
Best Quiet Option
- Less than 10 dB operation
- 35–55°C adjustable temperature
- Dry while printing with internal rollers
Best For: Quiet home printing with TPU and standard spools
Best High-Capacity Pick
- Holds four 1kg or two 2kg spools
- Dual 200W chambers reach 85°C
- Sealed storage helps prevent reabsorption
Best For: High-volume multi-spool drying and storage
Best Dual-Spool Value
- Dries two 1kg spools together
- Reaches 70°C with 150W PTC heating
- One-key preset includes TPU
Best For: Compact two-spool TPU drying and storage
Best for Multi-Printer Setups
- Holds four 1kg spools
- Feeds up to four printers concurrently
- Humidity control and three circulation fans
Best For: Multi-printer TPU drying and active feeding
Budget Dual-Spool Pick
Comgrow SH01 Filament Dryer Box
- Two 1kg-spool capacity
- 40–50°C adjustable drying
- Supports 1.75mm and 2.85mm filament
Best For: Routine drying and storage of standard filament spools
High-Capacity TPU Choice
- 160W 360° PTC hot-air heating
- Holds two 1kg spools
- 45–70°C range with TPU preset
Best For: Multi-material and two-spool drying workflows
Flexible Timer Pick
Creality Space Pi Filament Dryer
- 0–48-hour timer
- 110W 360° PTC heating
- Power-off memory and TPU preset
Best For: Extended, repeatable drying sessions with simple controls
Best Overall – Creality Space Pi SE Filament Dryer
The Creality Space Pi SE is a practical filament dryer for TPU and other common materials when you want adjustable heat, timed drying, and live humidity monitoring. Its 45–65°C range and 1 kg spool capacity make it a straightforward choice for routine moisture control.
Best For: Users seeking an easy-to-operate dryer for one standard spool of TPU and other 1.75 mm or 2.85 mm filaments.
Pros:
- PTC heating and 360° airflow can reach 65°C within 15 minutes.
- Adjustable temperature and drying time from 0–24 hours.
- Supports common materials including TPU, PLA, PETG, ABS, ASA, PC, and nylon.
- Display shows humidity and countdown timing, with insulated inner walls.
Cons:
- Its 65°C maximum is lower than some competing dryers.
- Designed for one 1 kg spool at a time.
Choose this model if you value simple controls and broad filament compatibility. For TPU, the adjustable settings let you tailor the drying cycle to your material and storage conditions.
Best High-Capacity Single-Spool – SUNLU S2 Filament Dryer
The SUNLU S2 is a versatile filament dryer for TPU when you need a wider temperature range and extended timer settings. Its 35–70°C controls, continuous spool rotation, and translucent lid support both drying and printing from the box.
Best For: 3D printing users who want flexible settings for TPU and compatibility with 1.75 mm, 2.85 mm, and 3.00 mm filament.
Pros:
- Adjustable temperature from 35–70°C and drying time from 0–99 hours.
- Built-in spindle rotates the spool for more even drying.
- Can dry during printing and function as a filament spool holder.
- Large 265×274×118 mm capacity accommodates many spool types.
Cons:
- Its larger single-spool design does not dry two rolls simultaneously.
- Temperature and timer flexibility may be more than needed for basic use.
The S2 stands out for users who want more control over drying schedules. It is especially useful when TPU has been stored in humid conditions and needs a longer, customized cycle.
Best for Two Spools – Comgrow SH02 Filament Dryer
The Comgrow SH02 is a filament dryer for TPU designed around higher-volume workflows. It holds two 1 kg spools, reaches up to 70°C, and provides preset settings for nine filament types, including TPU.
Best For: Users who need to dry two rolls at once or feed dried filament to two printers through the box.
Pros:
- Two-spool capacity supports simultaneous drying and printing.
- 150W PTC heating reaches 50°C in about 7 minutes and 70°C in about 25 minutes.
- One-key presets cover nine materials, including TPU, PLA, PETG, ABS, and nylon.
- Sealing rings and safety protections help limit moisture exposure and overheating.
Cons:
- Two-spool design is larger and heavier than single-spool options.
- Preset operation may offer less manual control than fully customizable dryers.
This is the strongest fit for multi-printer setups or anyone rotating through several spools. Its sealed construction and dual PTFE outlets also make it practical for feeding TPU while it dries.
Best Quiet Option – SUNLU S1 Plus Filament Dryer
The SUNLU S1 Plus is a filament dryer for TPU suited to quieter workspaces and print-while-drying use. It offers 35–55°C temperature control, a 1–99-hour timer, and internal rollers that allow the spool to feed during printing.
Best For: Home users who prioritize quiet operation, straightforward controls, and broad spool compatibility.
Pros:
- Runs at less than 10 dB according to the supplied specifications.
- Supports drying while printing with built-in rollers and a circulation fan.
- Compatible with 1.75 mm, 2.85 mm, and 3.00 mm filament.
- Offers adjustable 35–55°C temperature and 1–99-hour drying time.
Cons:
- Its 55°C maximum is lower than the other listed dryers.
- The supplied specifications do not state a dedicated humidity display.
The S1 Plus is a sensible choice when noise matters more than maximum heat. Its lower temperature ceiling can still suit TPU and many everyday filaments, while the rollers support uninterrupted printing during drying.
Best High-Capacity Pick – Creality Space Pi X4
If you need a filament dryer for TPU that can handle several spools at once, the Creality Space Pi X4 combines four-spool capacity with dual heating chambers. Its adjustable temperature range and sealed storage design make it practical for both drying and protecting filament between prints.
Best For: High-volume users who want to dry or store up to four standard 1kg spools.
Pros:
- Holds four 1kg spools or two 2kg spools.
- Dual independent 200W heating chambers reach up to 85°C.
- Supports 1.75mm and 2.85mm filament, including TPU.
- Sealed enclosure helps reduce moisture re-absorption during storage.
Cons:
- Larger footprint than a single- or dual-spool dryer.
- Its higher 85°C capability may be unnecessary for basic PLA or TPU use.
The Space Pi X4 is a strong choice when capacity matters most. It is especially useful for multi-spool workflows, though its size makes it better suited to a dedicated work area.
Best Dual-Spool Value – Sovol SH02 Dry Box
The Sovol SH02 is a practical filament dryer for TPU when you want to dry two spools simultaneously without taking up the space of a four-spool unit. Its 40–70°C settings, dedicated TPU preset, and improved sealing support straightforward drying and storage.
Best For: Users who need dual-spool drying, simple presets, and a compact sealed storage box.
Pros:
- Dries two 1kg spools at the same time.
- 150W PTC heating reaches 50°C in seven minutes and 70°C in 25 minutes.
- Includes one-key settings for TPU and eight other filament types.
- Improved sealing helps protect filament when the unit is not powered on.
Cons:
- Maximum temperature is 70°C, lower than some larger dryers.
- Desiccant bags for the storage compartment are not included.
For TPU users who do not need four-spool capacity, the SH02 offers a useful balance of speed, presets, and storage protection. Its dual feed holes also make it suitable for supplying two printers.
Best for Multi-Printer Setups – SUNLU S4 Filament Dryer
The SUNLU S4 is a filament dryer for TPU designed around multi-spool workflows. It holds four 1kg spools, supports feeding up to four printers concurrently, and uses three fans with humidity control to maintain a more consistent drying and storage environment.
Best For: Multi-printer users running several spools or colors at the same time.
Pros:
- Fits four 1kg spools in its large interior.
- Heats up to 70°C and supports TPU, nylon, PLA, PETG, and ABS.
- Three fans provide 360° air circulation for more even heating.
- Humidity control triggers at 30–50% RH and stops below 25% RH.
Cons:
- Large and heavy compared with smaller filament dryers.
- Its 70°C maximum may limit some higher-temperature drying applications.
The S4 makes the most sense for a workshop or multi-printer setup. Its four-spool layout and humidity management reduce the need to rotate filament through a smaller dryer.
Budget Dual-Spool Pick – Comgrow SH01 Filament Dryer Box
If you need a practical filament dryer for TPU and other everyday materials, the Comgrow SH01 focuses on sealed storage and in-use drying. Its adjustable 40–50°C range, two-spool capacity, and compatibility with 1.75mm and 2.85mm filament make it a straightforward option for routine moisture control.
Best For: Makers who want to dry or store two standard filament spools at once without needing high-temperature settings.
Pros:
- Holds two 1kg spools and supports both 1.75mm and 2.85mm filament.
- Provides adjustable 40–50°C heating with 6- to 12-hour timing.
- Includes a 2-inch LCD, temperature and humidity monitoring, and a sealed outlet design.
Cons:
- Its maximum temperature is 50°C, which is lower than some higher-powered filament dryers.
- Correct operation requires the work state to appear on the screen; otherwise, the motherboard may shut down after three minutes.
The Comgrow SH01 is a sensible choice when capacity and sealed handling matter more than aggressive heat. For TPU users, verify that the selected drying temperature suits the specific filament, since this unit is limited to 50°C.
High-Capacity TPU Choice – Creality Space Pi Dryer Plus
For shoppers seeking a more powerful filament dryer for TPU, the Creality Space Pi Filament Dryer Plus combines two-spool capacity with 160W PTC heating and 360° hot-air circulation. Its presets cover TPU along with several other common and composite materials, while the touch display keeps settings easy to monitor.
Best For: Multi-material users who want to dry two spools simultaneously and adjust settings across a broad 45–70°C range.
Pros:
- Dries two 1kg rolls and offers four filament holes with two PTFE pipes.
- Uses 160W PTC heating with 360° hot-air circulation for more uniform warming.
- Includes TPU and other material presets, plus manual adjustment from 45–70°C.
- Features a 4-inch touch screen and supports 1.75mm and 2.85mm filament.
Cons:
- The higher-capacity design weighs about 1.9 kg, making it less compact than simpler dryers.
- The supplied notes do not specify a maximum drying time or a power-outage memory feature.
The Space Pi Plus is the most capable fit here for users who regularly work with TPU and several other filament types. Its dual-spool layout and wider temperature range add flexibility, particularly for a two-printer setup.
Flexible Timer Pick – Creality Space Pi Filament Dryer
This Creality Space Pi is a versatile filament dryer for TPU when long unattended drying cycles are useful. It combines 110W 360° PTC heating with a 0–48-hour timer, material presets, and power-off memory, supporting both 1.75mm and 2.85mm filament.
Best For: Users who want extended drying cycles, simple touchscreen controls, and remembered settings after a power interruption.
Pros:
- Uses 110W PTC heating and a fan to circulate hot air around the filament.
- Offers one-key settings for up to 12 materials, including TPU, plus a 45–70°C manual range.
- Provides a 0–48-hour timer and power-off memory for material and temperature settings.
- Supports most 1.75mm and 2.85mm filaments, including TPU, ABS, PETG, and composite materials.
Cons:
- This model lists a single-filament-dryer configuration, rather than the two-spool design of the Plus version.
- Its 3.7-inch display is smaller than the Plus model’s 4-inch touchscreen.
The standard Space Pi stands out for convenience rather than maximum capacity. Its long timer and power-loss memory are useful additions for TPU workflows where repeatable, extended drying sessions matter.
How We Picked the Best Filament Dryer for Tpu
We evaluated these models for the features that matter most when drying flexible filament: adjustable temperature range, heating consistency, spool compatibility, drying capacity, controls, and the ability to feed filament while it remains warm and protected. TPU typically benefits from controlled, relatively low-temperature drying, so precise settings are more useful than maximum heat alone.
We also considered practical differences between compact single-spool units and larger dryers designed for multiple reels. A larger chamber can be useful for regular production, but it may consume more power and take up more workspace. Models with sealed storage, clear controls, and reliable spool support received priority for everyday use.
Quick Comparison
| Best For | What to Look For |
|---|---|
| Occasional TPU printing | Compact single-spool dryer with adjustable heat |
| Frequent printing | Consistent heating, timer controls, and continuous feed-through |
| Several materials or spools | Multi-spool capacity and independently useful chamber space |
| Mixed filament storage | Sealed design, humidity management, and broad temperature control |
| Large or high-throughput setups | Higher-capacity chamber and stronger heating system |
Key Buying Factors for a Filament Dryer for Tpu
Temperature Control
Look for fine adjustment rather than a single preset. TPU should be dried according to its manufacturer’s recommendations, since different formulations and spool materials can tolerate different temperatures. Avoid assuming that the highest advertised temperature is best.
Capacity and Spool Fit
Check whether the chamber accepts standard 1 kg spools and whether its internal width accommodates wider or specialty reels. A single-spool unit is often sufficient for one printer, while two- and four-spool designs suit users who dry materials in batches.
Heating and Airflow
PTC heating elements are common because they provide quick, regulated heat. Even airflow is important, especially in a larger chamber, because hot spots can deform filament or dry one side of a spool faster than another.
Printing While Drying
A feed-through port lets TPU travel directly from the dryer to the extruder. This is valuable because TPU can reabsorb moisture after drying, particularly in humid environments. Confirm that the feed path is smooth enough to avoid adding drag to a flexible filament.
Controls, Timers, and Storage
A readable display, timer, and humidity information make the dryer easier to operate consistently. If you plan to store filament inside the unit between prints, prioritize sealing and storage features rather than treating the dryer only as a short-term heater.
Who Should Buy Which Filament Dryer for Tpu?
Choose a Compact Dryer for Occasional TPU Projects
A smaller SUNLU, Comgrow, or Sovol-style dryer is a sensible choice for beginners and casual users who usually prepare one spool at a time. It saves space and typically costs less while still providing the core drying function.
Choose a Two-Spool Model for Regular Printing
Two-spool designs from the SUNLU or Creality ranges are better suited to users who alternate between TPU and another material or want one spool drying while another is ready to print. They balance capacity with a manageable footprint.
Choose a Four-Spool Dryer for Batch Work
A high-capacity model such as the Creality Space Pi X4 or SUNLU S4 makes more sense for workshops, print farms, and users who routinely prepare multiple reels. Confirm that its temperature controls match the materials you use most.
Choose Based on Control Rather Than Peak Temperature
For most TPU users, dependable low-temperature control, stable airflow, and a practical feed path matter more than an 85°C maximum. Match the dryer to your filament manufacturer’s instructions and your printing volume.