Comgrow Filament Dryer 4 Spools, SH03 Filament Storage Box, 200W PTC Heats Up to 85°C, Fast Drying Auto Dehumiditification Dual Independent Heating Chambers for PLA PETG ABS TPU ASA1.75/2.85 mm
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Availability:
In Stock.
Arrives
Tuesday, Jul 21
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Color: Black&transparent Gray
Material Type: Polylactic Acid
Features
- Large-Capacity Independent Dual Chambers:The SH03 filament drying box offers ample storage for 2+2 rolls of 1KG filament (supporting simultaneous loading of up to four 1KG spools). Equipped with independent rotating modules and dedicated filament output tubes, it delivers enhanced drying efficiency for 3D printing filaments. Each chamber features separate temperature control and on/off functionality, enabling concurrent drying and dehumidification of multiple types of consumables (e.g., PLA, ABS, PETG,TPU,ASA,PA,PC).
- 200W + 200W PTC Heating Modules | Maximum Drying Temperature: 185F (85C):The SH03 filament dryer is equipped with dual 200W PTC heating modules, enabling a rapid temperature rise of 50C. With an adjustable temperature range of 4585C, it accommodates diverse filament types.PTC heating elements offer low thermal resistance and high heat exchange efficiency, functioning as self-regulating, energy-saving heaters. Unlike traditional electric heating tubes, they eliminate safety risks such as scalds and fire hazards under all operating conditionsensuring reliable performance during prolonged use.
- Automatic Drying Mode for Enhanced Energy Efficiency:When the SH03 filament dryer is switched to Automatic Drying Mode, the AUTO indicator illuminates. The drying function activates automatically when the internal humidity exceeds the preset threshold. Once the humidity drops below the threshold, the dryer continues operating, and a 30-minute countdown initiates. Upon completion of the countdown, the drying process stops, and the unit enters energy-saving storage mode.
- Temperature Uniformity & Active Dehumidification:Equipped with a 360hot air circulation fan, the SH03 filament dryer ensures consistent temperature distribution throughout the drying chamber. The heating duration is adjustable, with a maximum continuous operation time of 98 hours. Featuring independent air flow channels, the unit automatically controls the dehumidification dampers opening and closing. During the drying process, if the internal temperature exceeds the preset value, the air intake and exhaust vents open automatically to regulate temperature. Effectively preventing overheating and potential damage to 3D printing filaments.
- 4 Comprehensive Protection & Monitoring Functions:The SH03 filament dryer is equipped with four integrated protection and monitoring mechanisms: outlet temperature monitoring, PTC overheat circuit breaker, fan operation monitoring, and main control board temperature monitoringensuring enhanced safety during 3D printing filament drying.
- Touchscreen & Intelligent Control for Intuitive Operation:The SH03 filament dryer is equipped with intelligent temperature control, including a dedicated 50C preset for PLA filamentseffectively preventing softening or deformation of the consumables. It features an integrated segment display (110x68mm, 5-inch) with screen-integrated touch keys and enhanced backlighting for clear visibility. Operation and parameter setup are streamlined: the unit starts instantly upon power-on, and users can quickly configure optimal drying parameters for various 3D printing materials.
Brand: Comgrow
Material: Polylactic Acid
Color: Black&transparent Gray
Item Weight: 7.5 Pounds
Item Diameter: 14 Inches
Brand Name: Comgrow
Additional Features: Dual independent heating chambers, automatic drying mode, active dehumidification, and comprehensive safety features
Manufacturer: Creality 3D
Number of Items: 4
Material Type: Polylactic Acid
Color: Black&transparent Gray
Item Weight: 7.5 Pounds
Item Diameter: 14 Inches
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jul 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Graphite Black
Material Type: Polylactic Acid
I’ve been using a filament dryer box for a while now, and it’s made a noticeable difference in my 3D prints. The whole point of drying filament is removing moisture, and this box does that really well. The unit heats up quickly and maintains a steady temperature, so you don’t have to babysit it. It’s roomy enough to fit several spools at once, which is super convenient if you print with different materials regularly. The build feels solid and the controls are intuitive, so setting the right temperature and time isn’t confusing at all. Since I started using it, I’ve had fewer failed prints, better surface quality, and stronger results with materials like PETG that are especially sensitive to moisture. If you print frequently or keep filament for long periods, this dryer box is a simple addition that really improves reliability and print quality. Highly recommended. I do occasionally have an error when it gets to hot and starts beeping. It turns itself off and doesn’t get hot enough to damage the filament, even when the error occurs with PLA in the dryer.
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Reviewed in the United States on February 28, 2026 by Daniel
Color: Red & Blue & Green
Material Type: Polylactic Acid
This tricolor 3D filament blew me away! I used it on my Bambu Lab printer to print the dragon shown in the photo, and the results were nothing short of perfection. The color transitions are smooth, vibrant, and give the model an eye-catching, professional finish that looks like it came straight out of a fantasy movie. Print quality was flawless—no stringing, no clogging, and the layers fused beautifully. The filament fed effortlessly through my printer and produced crisp detail and strong structure, even in more intricate parts of the model. I didn’t have to tweak my settings much at all—this stuff just worked. Highly recommend this filament for anyone looking to add a bold, dynamic look to their prints. It took my dragon from cool to absolutely epic.
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Reviewed in the United States on July 8, 2025 Reviewed in the United States on July 8, 2025 by Aurora Scott
Color: Graphite Black
Material Type: Polylactic Acid
This is my first filament drier. I was actually surprised at how well the filament and printer behaves with dried filament. I was having problems with bed adhesion and it turns out that dried filament works wonders in that department. the print quality was good when I could get my prints to adhere to the bed but dried filament is a game changer in that department. My prints are higher quality as well. If I would have known what a difference it would make then I'd have gotten this sooner. The drier is good quality and it is super easy to use. You just pop the filament in , turn it on and select the material and it goes about its work. You can change the drying duration and the built in hydrometer readings let you know if you should pop the lid for a second or two to let the moist air out. It does have a breather at the top of the chamber so that isn't really necessary but it was worth a try based on what I read about these driers. I really like this drier and it will be a standard part of my printing workflow from now on. Definitely worth the purchase.-
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Reviewed in the United States on December 3, 2025 by Trevor Seguin
Color: Graphite Black
Material Type: Polylactic Acid
Works really well, programmable to long run times. Verified as accurate temp control. But WOW is it loud. The fan is not ducted directly through the heater, just blows at the heater, which is weird, and so the air swirls around everywhere and the whole circuit board is exposed to whatever temps you're running at. That's because the temp and hygrometer sensors are on the main circuit board, no doubt to save money. I did design and print a fan duct and fan isolator combo out of TPU which cut the fan noise by 5dB and improved directed air flow and velocity significantly, which reduced drying time. To be clear, I did not use the ones other designed on the various STL sharing sites, but designed my own because I like doing that sort of thing. I'm using these as inline dryers for a Snapmaker U1, so I modified them with a bulkhead fitting PTFE tube adaptor I designed and printed as well. Taking a star off only because they are SO LOUD!!! Not expensive, and a pretty good dryer. Just loud.
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Reviewed in the United States on June 24, 2026 Reviewed in the United States on June 24, 2026 by KMSM
Color: Red & Blue & Yellow
Material Type: Polylactic Acid
This is my favorite multi color PLA. Solid adhesion and the quality is great. Works on multiple printers on standard settings. Will continue to buy this as everyone I make things for loves the colors.
Reviewed in the United States on March 22, 2026 Reviewed in the United States on March 22, 2026 by Keith
Color: Graphite Black
Material Type: Polylactic Acid
The SH02 Filament Dryer Box is an absolute game-changer for anyone who uses a 3D printer! If you’ve ever dealt with filament issues like moisture absorption, brittle material, or inconsistent prints, this dryer box is the perfect solution. The design is incredibly functional and well thought out. It can hold two spools at once, which is a huge time-saver, especially during long or multi-material printing projects. The sealed storage keeps the filament dry, and the built-in heating system works efficiently to eliminate any moisture, ensuring optimal filament quality. I love how user-friendly it is – the controls are intuitive, and the display makes it easy to monitor and adjust the temperature and drying time. It accommodates different filament types, including PLA, ABS, PETG, and more, so it’s versatile enough for all my 3D printing needs. The build quality is solid, and it runs quietly, which is a big plus for use in a home or office setting. Since using this dryer box, I’ve noticed a significant improvement in the consistency and quality of my prints, with fewer jams and better layer adhesion. For the price, this filament dryer box is an outstanding value. If you’re serious about 3D printing and want to ensure the best results, the SH02 is a must-have accessory. Highly recommend it!
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Reviewed in the United States on December 16, 2024 by Ken
Color: Graphite Black
Material Type: Polylactic Acid
Simple to use, and great results. I was having a lot of issues printing softer filaments like TPU and TPU AIR. Now I get prints with a smooth and shiny finish with TPU, and no more stringing when using TPU AIR. Keep in mind that all I did have trouble printing TPU AIR from the dryer, as its got a bit of texture, but probably printed about half a spool before I felt it needed drying again. Great investment!
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Reviewed in the United States on April 29, 2026 by Bob Miller
Color: Red & Blue & Yellow
Material Type: Polylactic Acid
Nice color combination - that is the only good thing I can say about this PLA. Printing with it is nothing but one issue after another. I have to babysit every single print because several got ruined. The filament is very tightly wound on a carboard spool. I constantly get errors from my AMS that motor is overloaded and I have to manually loosen up the filament on the spool to force it to continue printing. This problem gets continuously worse as you the spool gets smaller with usage. Because of that extra force needed to unwind the filament, the cardboard sides fray and deform after some use which makes it even hard for the AMS to work with it. Every time I have to print with it I have to check on the print and continue to manually loosen it up so it doesn't error out. The only solution is to transfer the filament to a new empty spool so it is not as tightly wound and not riding on the cardboard. I can't wait to finish this roll and I am definitely not buying it again. Look for other options.
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Reviewed in the United States on June 15, 2026 by ykamenet