Comgrow SH03 4-Spool Filament Dryer Box, Dual 200W Heating Chambers, 85°C Max Temp, Auto Dehumidification, Fast Heat-Up, 99H Programmable Drying and Silent Sealed Storage for 1.75mm Filaments
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Availability:
Only 10 left in stock, order soon!
Arrives
Thursday, May 14
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Set name: Gen 3 Dryer Box
Features
- Dual Independent Heating Chambers for 4-Spool Drying Efficiency The Comgrow SH03 features two independently controlled 200W PTC heating chambers, allowing simultaneous drying of four 1kg filament spools. Each chamber supports different temperatures for different materialsideal for PLA, TPU, PETG, ABS, PC, and more. With 85C max temperature and optimized heat paths, the SH03 reaches operating temperature 3040 percent faster than conventional dryers, ensuring consistent, moisture-free filament performance.
- Auto Dehumidification System with Smart Airflow Control Equipped with Auto Dehumidification, the SH03 automatically vents internal moisture once temperatures stabilize, preventing rehydration during long cycles. Dual-zone humidity control, built-in circulation fans, and desiccant storage areas maintain ultra-dry conditions. 11 material presets automate your workflowselect the filament type and the dryer sets optimal time and temperature.
- 99-Hour Programmable Drying & Silent Sealed Storage With an extended 299 hour programmable cycle, the SH03 adapts to both quick drying and long-term maintenance modes. The sealed double-layer enclosure prevents moisture from re-entering, allowing the SH03 to act as a silent filament storage box. Rubber seals and gasket-lined doors improve moisture resistance by 30 percent, safeguarding filaments even with frequent access.
- Fast Heat-Up to 85C with Dual 200W PTC Heaters Powered by 200W + 200W PTC ceramic heaters, the SH03 rapidly heats to target temperature: 50C in approx. 4 minutes 70C in approx. 12 minutes 85C max for high-temperature materials The smart thermal circulation system distributes heat evenly across both chambers, avoiding hot spots and ensuring consistent filament drying for superior print results.
- Advanced Safety System & Ultra-Quiet Operation Built-in safety mechanisms include overheat protection, fan failure detection, outlet temperature monitoring, and system fault alerts. The SH03 maintains a quiet 48dB operating noise level, making it suitable for studios, home workshops, and office environments. A reinforced handle and thermal guard prevent burns, ensuring safe, 24/7 continuous operation.
Brand: Comgrow
Material: Plastic
Color: Gen 3 Dryer Box
Item Weight: 1750 Grams
Special Feature: Dual Independent Heating Chambers for Simultaneous Drying of Four Filament Spools
Brand Name: Comgrow
Additional Features: Dual Independent Heating Chambers for Simultaneous Drying of Four Filament Spools
Manufacturer Part Number: SH03
Manufacturer: Creality 3D
Number of Items: 1
Model Number: SH03
Included Components: Filament Dryer
Warranty Description: 1 Years Warranty
Material Type: Plastic
Color: Gen 3 Dryer Box
Item Weight: 1750 Grams
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, May 14
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
Set name: Gen 1 Dryer Box
This filament dryer made a noticeable difference in my print quality. It’s easy to use, heats up quickly, and keeps filament dry while printing, which helped reduce stringing and print issues. Simple setup, quiet operation, and works great for everyday printing. Definitely worth it if you want more consistent prints. Color quality, material quality, it’s all perfect with this.
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Reviewed in the United States on January 30, 2026 by GARRETT
Set name: Gen 1 Dryer Box
Very nice dryer, I would like to say that I wish it had a 4 hour option, lowest is 6 hour, but I guess higher is better than lower. I only use it at 50c and its been working great, comes with plugs to keep moisture in. Looks super nice on my desk, doesnt take up much space, Durability is probably a 9/10, lid feels a bit flimsy but its not like its gonna take a hit any time soon. I printed tpu while drying it and the bearings helped gret with the extrusion, no issues for me. overall great product for 3d printing.
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Reviewed in the United States on February 10, 2026 by Diland
Set name: Gen 1 Dryer Box
I just started 3d printing and got the cheapest I could find. First off this has a major design flaw the bottom of the dryer gets very hot because there is no air flow at the bottom of the case! This will get your table quite warm and possibly damage it over time if its plastic or laminated! I had some stick on some rubber feet to elevate the unit and that fixed the problem instantly! I later bought some silicone speaker isolation feet (heat resistant and way taller) to replace them for more airflow and the bottom only gets warm now, I just stuck them over the original 3/4 sized anti skid pads. This is a very bare bones unit but nice, the model I received has 4 filament holes 2 on top in addition to the 2 front like as pictured and apparently I have the new firmware which now has 50C as the starting temp and 48hr max timer, yay! Got to be frank this does not look like its gonna last long its cheap looking but it does what its supposed to! You can not rely on opening all the filament ports to let moisture escape you have to crack the lid with the locking clamps as a prop to dehydrate otherwise it takes forever. There are a bunch of printable mods to improve this unit which look fun to try. So far I am printing with one spool in the dryer and a spare just sitting there drying out with whatever silica packs I can fit in the centers of the spools to recharge them...rollers work fine and the silicone filament hole grommets don't impede the flow too much but I'm going to replace them soon, like I said there are so many videos on this unit to mod it! One star taken for the horrible heat problem on the base where you HAVE to buy feet, otherwise nice unit to fiddle and play around with.
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Reviewed in the United States on November 25, 2025 by The Amazing E!
Set name: Gen 1 Dryer Box
This is my second purchase of this dryer because I liked the first one I bought. it works extremely well, easy to use
Reviewed in the United States on March 13, 2026 by Brian Thorpe
Set name: Gen 1 Dryer Box
I wasn’t sure how well this would work I’m still a novice and this price was far below most others … sometimes you get what you pay for - this time I got something well worth every single penny- works beautifully- instructions and operation was easy- easy enough that I really didn’t need instructions. Works well saves me way more than I realized including hassle. I like the way it locks and vents the moisture when drying - I did observe a tiny bit of condensation on the lid but we keep our thermostat set on arctic and the filament I was drying had been left out for quite a long time- the $40 I spent on this saved me from chucking $150 worth of filament . It is a dryer not just storage. I just dry it then store what I’m not going to use anytime soon in vacuum seal bags. What I did not realize is how different freshly dried filament saves on frustration, colorful wording, frequent reprints…. I love how I needn’t even remove it from the box with a place to pull the filament through. I’m beginning to wonder if perhaps I shouldn’t just but another one to save time but I don’t print a a hobby but for parts and pieces and to use for casting. This is so so helpful- if you are teetering with the decision- I wouldn’t bother with the more expensive ones this one does the trick. I’ve used this more than once btw-,probably a combined total of 72 hours dry time. Even if you need a larger capacity - it’s still cheaper to purchase two of these than one of the four spool driers. Well worth it.
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Reviewed in the United States on September 13, 2025 by c
Set name: Gen 2 Dryer Box
Good price and works great. I have best results opening every couple hours as the vent is tiny and moisture builds up as filament dries. Overall does what I needed at a good price.
Reviewed in the United States on November 15, 2025 by mchipguru
Set name: Gen 2 Dryer Box
As a straight filament dryer, it’s easy to use and effective, printing from the unit with anything that has resistance such as TPU results in repeated failures. The exit of the printing tubes being at an angle and so close to the filament causes the ptfe tubes to have a decent bend in them, increasing resistance while pulling on the filament. I feel a unit that has a flat top feed port would work better as it is less sharp bends of the filament before hitting the extruder.
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Reviewed in the United States on June 11, 2025 by Matthew Zabriskie
Set name: Gen 1 Dryer Box
I will say to start off with this is not necessary if you want to print with PLA. If you want to print with more advanced filaments this device is a game changer in the humid south.. I love this device it delivers great drying capability and as allowed me to print with ASA and TPU that I did not have the ability to do regularly with the humidity in the south. The machine is easy to use plug in put filament in and it will do rest. Very happy and would highly recommend!!
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Reviewed in the United States on January 29, 2026 by TulleyM