SH01 showdown: Comgrow or Sovol for dry, reliable filament?
If you’re tired of brittle PLA, stringy PETG or moisture-sensitive TPU ruining prints, a filament dryer box is one of those upgrades that pays for itself fast. These two SH01-style dryers are very close on paper, so the real question is which one gives you the better mix of drying performance, usability and value. The good news: both are aimed squarely at makers who want to keep filament dry while printing, rather than faffing about with DIY food boxes and silica sachets. The decision mostly comes down to price, compatibility and which brand/package gives you the better overall deal.
Comgrow 3D Printer Filament Dryer Box SH01, 3D Filament Storage, Keeps Filaments Dry During 3D Printing, Compatible with 1.75mm/2.85mm PLA PETG ABS Material, Filament Dryer, Spool Holder
3D Printer Filament Dryer, Sovol SH01 Filament Dehydrator Spool Holder, Dry Box for Keeping Filament Dry During 3D Printing, Compatible with 1.75mm, 2.85mm PLA PETG TPU ABS Material
Our Recommendation
Sovol is the better buy because it costs £4 less while offering broadly the same core function and a slightly wider stated material list, including TPU. Comgrow does have the higher rating and more reviews, but the difference is small enough that it doesn’t beat the value advantage. For most makers, the cheaper option with the broader compatibility wins.
Detailed Comparison
Display / screen quality
Neither product listing provides detailed screen specifications, so there’s no hard evidence of one having a better display than the other. In practical terms, these SH01 units are typically judged more on how easy they are to set temperature and time, and both appear to serve the same core purpose: simple filament drying with spool-holder functionality. Without confirmed differences in panel brightness, layout or readability, this category is effectively a tie. Winner: tie.
Performance
Again, the available product data does not show a meaningful difference in drying performance. Both are designed to keep filament dry during printing and support the same common materials: PLA, PETG and ABS, with the Sovol listing also explicitly including TPU. That extra TPU mention is useful because TPU can be a bit of a diva when it comes to moisture, so Sovol has the edge on stated material support. If you print flexible filament regularly, Product B looks slightly more versatile on paper. Winner: Product B.
Build quality and design
The two products are clearly from the same SH01 family and are likely very similar in layout: a dry box plus spool holder intended to feed filament directly into your printer. Comgrow’s listing is a touch more conservative, calling out 1.75mm and 2.85mm compatibility plus PLA, PETG and ABS. Sovol’s version adds TPU and presents itself as a dehydrator spool holder, which suggests the same practical design but with broader advertised use. Based on the information provided, there’s no strong evidence that one is materially better built than the other, but Sovol wins slightly on design flexibility because of the wider stated material support. Winner: Product B.
Battery life
This category doesn’t really apply here. These are mains-powered filament dryer boxes, not portable battery devices, so there’s no battery life to compare. If you were hoping for cordless operation, neither product is the right tool. Winner: tie.
Price and value for money
This is where the decision gets much clearer. Product A costs £42.74, while Product B is £38.74, making Sovol £4.00 cheaper. That may not sound huge, but on a simple utility item like a filament dryer, a lower price with near-identical positioning is exactly what value hunters want. Comgrow does have the slightly higher review score at 4.4/5 from 3,230 reviews versus Sovol’s 4.3/5 from 2,533 reviews, which suggests very similar customer satisfaction. However, the extra reviews on Comgrow don’t outweigh the fact that Sovol is cheaper and appears to support TPU as well. Winner: Product B.
Game library / features
For filament dryers, think of this as feature set rather than game library. Both products are aimed at drying and storing filament while allowing it to feed into the printer, which is the key feature most people care about. Comgrow’s listing highlights 1.75mm/2.85mm PLA PETG ABS compatibility; Sovol adds TPU to that list. That makes Sovol the more feature-rich option on paper, especially for makers who run a mixed-material setup or want one box to cover more of their filament stash. Winner: Product B.
Overall user experience
The user experience here is likely to be very similar because these are close cousins in the same SH01-style category. The real-world difference is going to come down to how often you use it, what filament types you run, and whether you want to save a few quid. Comgrow has the stronger review score and more reviews overall, which is reassuring if you value proven popularity. But Sovol undercuts it by £4 and explicitly covers TPU, making it the better fit for most users who want maximum usefulness for the least cash. Winner: Product B.
Overall summary: these are very similar filament dryer boxes, but Sovol edges it on value and versatility. Comgrow has the slightly better rating and more reviews, which makes it feel like the safer crowd-pleaser, but Sovol is cheaper and lists TPU support as well as PLA, PETG and ABS. If you want the best buy on balance, the Sovol SH01 is the one to pick. If you prioritise the stronger review history over saving £4, Comgrow remains a solid runner-up.
Buy the Comgrow 3D Printer if...
Buy Comgrow if you want the slightly stronger review record and prefer the product with the higher average rating and more total feedback. It’s also a sensible pick if you mainly print PLA, PETG and ABS and want the most established-looking option. If brand trust and review volume matter more to you than saving a few quid, A is a safe choice.
Buy the 3D Printer Filament if...
Buy Sovol if you want the best value and a bit more material flexibility, especially if you print TPU as well as PLA, PETG and ABS. It’s the better pick for budget-conscious makers who want the same SH01-style functionality for less money. If you just want a practical dry box that does the job without paying extra, B is the one to get.
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