Best Filament Dryer for Petg (2026): 5 Picks Compared
Five filament dryers and a storage box for PETG printing, compared by heating, capacity, safety features and warranty terms from each listing.
On this page
Top picks at a glance
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- 1
Best OverallComgrow SH02 Dryer9.8/10View on Amazon - 2
Best Single SpoolCreality Space Pi SE9.7/10View on Amazon - 3
Best Sealed StorageSovol SH01 Dryer9.4/10View on Amazon - 4
Best Touch ScreenCreality Space Pi9.4/10View on Amazon - 5
Best Storage OnlyPolymaker Polydryer9.3/10View on Amazon
Damp filament can ruin a print with stringing, bubbling and clogging, and a maker who prints with PETG wants spools that stay dry from storage to the last layer. This guide compares dryers and a storage box to help choose the best filament dryer for petg for a home workshop.
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Quick picks
- Best Overall Comgrow SH02 Dryer: 2 spools, 150W PTC heat, 40 to 70 degrees C, 1 year warranty Check price on Amazon
- Best Single Spool Creality Space Pi SE: PTC heat to 65 degrees C in 15 minutes, 0 to 24 hour timer Check price on Amazon
- Best Sealed Storage Sovol SH01 Dryer: Sealed box for storage without power, 1 Year Warranty Check price on Amazon
- Best Touch Screen Creality Space Pi: 3.7-inch touch screen, 12 filament presets, 0 to 48 hours Check price on Amazon
- Best Storage Only Polymaker Polydryer: Sealed box with hygrometer, feeds without breaking the seal Check price on Amazon
Machines on the list
Comgrow Filament Dryer Box
A 2-spool dryer with a 150W PTC heater, a fan for 360 degree hot air circulation, and one-key settings for 9 filament types.
Pros
- Dries 2 rolls of 1KG filament at the same time, for two printers
- 150W PTC heater reaches 50 degrees C within 7 mins and 70 degrees C within 25 mins
- One-key temperature setting for 9 types of filaments, including PETG
- PTC cutoff at 130 degrees C, resume below 90 degrees C, plus a fan-stop alarm
Cons
- 4.4 pounds, heavier than the single-spool picks here
- Maximum drying time of 98H is longer than most single jobs need
- Graphite Black colour only, as listed in the spec table
- Sealing rings at several points need checking before each use
Creality 2026 New Upgrade Filament Dryer Box Pro
A single-spool dryer with PTC heating, a fan for 360 degree circulation, and a display with a countdown timer for humidity and drying hours.
Pros
- Heats to 65 degrees C within 15 minutes, with a built-in fan
- Adjustable temperature range of 45 to 65 degrees C for different filaments
- Time setting range of 0 to 24 hours, with real-time humidity monitoring
- Thermal insulation cotton on the inner wall, for warmth and anti-scald use
Cons
- Fits most 1KG spools only, not 2 spools at once
- Warranty term stated is 6 months, shorter than the 1 year picks
- After drying, the listing says it is best to store filament in a vacuum bag
- Input voltage stated is 110V 50/60Hz, so check the local supply
Sovol Filament Dryer 2026
A dryer and storage box with a built-in fan, real-time temperature and humidity display, and silicone and PTFE seals for storage without power.
Pros
- Stores 2 rolls under 70 mm width or 1 roll under 150 mm width
- Silicone and PTFE seal allows storage without power for a long time
- Displays humidity and temperature in the dry box in real time
- Warranty stated as 1 Year Warranty in the spec table
Cons
- Setting temperatures are only 40, 45 and 50 degrees C
- Setting time is only from 6 hours to 12 hours
- Desiccant bags are not included in the package
- In a room under 16 degrees C, the box would not come up to 50 degrees C
2026 New Creality Space PI Filament
A dryer with a 110W PTC heater, 360 degree hot-air circulation, a 3.7-inch touch screen, and one-key settings for 12 filament types.
Pros
- 110W PTC heater with a built-in fan for uniform 360 degree heating
- One-key temperature settings for 12 types of filaments, including PETG
- Temperature freely adjustable from 45 degrees C to 70 degrees C
- Heating duration freely set from 0 to 48 hours, with power-off memory
Cons
- No warranty term stated in the listing
- No safety cutoff or alarm stated in the listing
- Touch screen is 3.7-inch, so check it suits the workspace
- Compatible with most 1.75mm and 2.85mm filaments, not 3.00mm
Polymaker Polydryer Filament Storage Box for 1kg
A sealed storage box only, with a built-in hygrometer and desiccant support, that feeds filament without breaking the seal.
Pros
- Feeds 1.75mm, 2.85mm and 3.00mm filament without breaking the seal
- Airtight enclosure with desiccant support for longer-term storage
- Built-in hygrometer shows the humidity reading for storage conditions
- Compatible with PLA, PETG, ABS, ASA, TPU, PVB and PA/Nylon up to 1kg
Cons
- Storage box only, with no heater stated in the listing
- No drying temperature or drying time stated in the listing
- No warranty term stated in the listing
- No safety feature stated in the listing
Specs compared
| Model | HQ Score | Heating | Capacity | Temp Range | Warranty |
|---|---|---|---|---|---|
| Comgrow SH02 Dryer | 9.8/10 | 150W PTC, fan | 2 spools, 1kg each | 40 to 70 degrees C | 1 year |
| Creality Space Pi SE | 9.7/10 | PTC, fan | 1kg spool | 45 to 65 degrees C | 6 months |
| Sovol SH01 Dryer | 9.4/10 | Fan, heater | 2 rolls under 70 mm | 40, 45, 50 degrees C | 1 year |
| Creality Space Pi | 9.4/10 | 110W PTC, fan | Most 1kg spools | 45 to 70 degrees C | Not stated |
| Polymaker Polydryer | 9.3/10 | No heater stated | 1kg spool | Not stated | Not stated |
Specifications are manufacturer rated, as published on each listing and collected 3 November 2026.
How to choose the best filament dryer for petg
Match capacity to the spool on the printer
Most picks here take a 1kg spool at 1.75mm or 2.85mm, while the Comgrow SH02 dries 2 rolls of 1KG filament at the same time, which suits two printers or a spare spool. The Sovol SH01 stores 2 filament rolls with a width of less than 70 mm or 1 filament roll with a width of less than 150 mm, so check spool width before choosing. The Polymaker Polydryer takes a 1kg spool at 1.75mm, 2.85mm and 3.00mm, but it is a storage box only, with no heater stated.
Match temperature and time to the filament
Temperature range matters more than a single setting, because different filaments need different drying conditions. The Comgrow SH02 lists a temperature range of 40 to 70 degrees C, with one-key settings for 9 types of filaments, while the Creality Space Pi lists 45 to 70 degrees C with one-key settings for 12 types of filaments. The Creality Space Pi SE lists 45 to 65 degrees C with a time setting range of 0 to 24 hours, and the Sovol SH01 lists setting temperatures of 40, 45 and 50 degrees C with a setting time from 6 hours to 12 hours.
Check safety features and warranty before buying
Safety features are stated clearly on only one pick here. The Comgrow SH02 cuts off heating when PTC temperature exceeds 130 degrees C, resumes heating below 90 degrees C, and sounds an alarm if the fan stops rotating. For warranty, the Comgrow SH02 and the Sovol SH01 each state 1 year, the Creality Space Pi SE states 6 months, and the other two picks state no warranty term. See PLA vs PETG filament for how PETG differs from PLA in a print.
Plan storage after drying
Drying is only half the workflow, because a dry spool can take up moisture again while it waits. The Creality Space Pi SE listing says it is best to store filament in a vacuum bag after drying, and the Sovol SH01 listing describes silicone and PTFE seals for storage without power, with space for desiccant bags that are not included. The Polymaker Polydryer is built for that storage stage, with a sealed enclosure, desiccant support and a built-in hygrometer, and it feeds filament without breaking the seal.
Project Match
- PETG parts on two printers at once: Comgrow SH02, with 2 spools and a 40 to 70 degrees C range.
- PETG prototypes from a single spool: Creality Space Pi SE, with a 45 to 65 degrees C range and a 0 to 24 hour timer.
- PETG prints where a warranty term matters: Sovol SH01, with a 1 Year Warranty and a sealed box for storage.
- PETG and composite filaments from one box: Creality Space Pi, with one-key settings for 12 types of filaments.
- Keeping a PETG spool dry between prints: Polymaker Polydryer, a sealed storage box with a hygrometer and feed without breaking the seal.
How the scores add up
Each dryer is scored on performance, build, value, safety and warranty, with the weights published on our How We Pick page. A spec the listing does not publish scores nothing, and a warranty term only scores when the listing states a concrete term.
| Product | HQ Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Comgrow SH02 Dryer | 9.8 | 32 | 22 | 21 | 9 | 3 |
| Creality Space Pi SE | 9.7 | 30 | 21 | 21 | 7 | 2 |
| Sovol SH01 Dryer | 9.4 | 26 | 20 | 20 | 0 | 3 |
| Creality Space Pi | 9.4 | 29 | 21 | 21 | 0 | 0 |
| Polymaker Polydryer | 9.3 | 21 | 20 | 19 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
FAQ: lasers and CNC
What is a filament dryer?
A filament dryer is a heated box that dries moisture from a filament spool, often with a fan circulating hot air, so the filament prints with less stringing, bubbling and clogging, as the listings here describe.
Do you need a filament dryer for petg?
The listings here describe filaments as hygroscopic and say moisture can cause printing failure, drawing, clogging and poor adhesion, so a dryer helps when PETG has taken up moisture or when prints show those problems.
Why do you need a filament dryer?
Moisture in filament can cause stringing, bubbling, clogging, uneven layers and poor adhesion, according to the listings here, and drying the spool before printing helps keep results consistent.
Does petg need a filament dryer?
PETG is listed among the compatible filaments for every heated dryer here, and the listings describe PETG alongside PLA, ABS, ASA and TPU as filaments that benefit from drying, so a dryer suits PETG work.
How to dry filament without a dryer?
The listings compared here do not describe a dryer-free drying method, so do not assume one from this guide. The listings do describe sealed storage with desiccant, as on the Sovol SH01 and the Polymaker Polydryer, for keeping a spool dry after drying.
Related: best filament dryer for TPU, filament dryer vs food dehydrator, best 3D printer for small business and the 3D printer hub.
