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💡 Keep your prints flawless—never let moisture kill your creative flow!
Slice Engineering’s Filament Drying Desiccant (2 Pack) uses activated alumina to absorb moisture 10 times more effectively than silica gel, ensuring your 3D printing filament stays dry and print-ready. Designed to fit inside filament spools, it prevents common print defects caused by wet filament such as stringing and poor adhesion. Infinitely rechargeable and made in the USA, this desiccant offers a safe, eco-friendly solution for maintaining optimal filament quality across all FDM materials.





| ASIN | B0DD295BL8 |
| Additional Features | 10x more powerful moisture absorption, rechargeable activated alumina, fits inside spools, compatible with all FDM materials |
| Best Sellers Rank | #23,432 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #91 in Desiccants #520 in 3D Printing Filament |
| Brand | Slice Engineering |
| Brand Name | Slice Engineering |
| Color | White |
| Customer Reviews | 4.2 out of 5 stars 61 Reviews |
| Item Diameter | 49 millimeters |
| Item Weight | 0.23 kg |
| Manufacturer | Slice Engineering |
| Manufacturer Part Number | P-FDD-AC-1109-2P |
| Material | activated alumina desiccant |
| Material Type | activated alumina desiccant |
| Model Number | P-FDD-AC-1109-2P |
| Number of Items | 2 |
| Number of Packs | 2 |
| Special Feature | 10x more powerful moisture absorption, rechargeable activated alumina, fits inside spools, compatible with all FDM materials Special Feature 10x more powerful moisture absorption, rechargeable activated alumina, fits inside spools, compatible with all FDM materials See more |
| UPC | 850063808187 850035484937 |
| Unit Count | 2 Count |
| Warranty Description | No warranty |
A**R
Fits within filament reels nicely
Works well
F**N
Very efficient and practical.
I had been buying this brands bulk desiccant but these are really handy and nice and you can dry out the beads in the container.
T**Z
Way overpriced - cheaper options for same thing available
Why are these so expensive? You can buy the activated alumina desiccant beads for slightly more than plain silica beads, and I got the 5x7cm stainless powder shakers here, six of them for a single digit amount. Please tell me why these are roughly 7x the price of the parts?
G**V
Works great, nice price maybe safer?
The stuff is working very very well. I added some cartridges to the AMS above my printer and filled them with this descant. I watched as the humidity dropped from the 40% to 50% range down to 10%. I’m very happy with this. I read somewhere that this type of desiccant was safer to have around than the regular color changing stuff. I don’t know if that’s true or propaganda. You know how “big dessicant” can be.
C**W
Well packaged for drying filament!
Very convenient for drying filament since the canister is shaped to fit inside the spool. There are a number of ways to buy and use dessicant, but these are again a nice purpose built solution for 3D printing. They say this is made of a more efficient and less toxic material in activated alumina, which I have to take them at their word for as I haven't strictly tested both types, but that's great if so. The metal canisters are great, and they state that it's made in the USA, which is generally nice to support. They are priced a little on the high side, but the pricing improves with the larger packs. Overall a good drying solution for 3D printing.
Z**5
Do your research
These work as intended but two days later I found some that I was able to print that work just as well.
A**K
Amazing!
This is the most efficient dissicant I ever used. Works super fast and dries up to 20%
R**T
Reusable
Great little product. Love the reusable aspect!
P**X
Rubbish stay away
Absolutely rubbish not even worth one star Dried them numerous times and still make no difference to moist levels. Stay well away
Trustpilot
2 weeks ago
1 month ago