Prime Day deals are live! View Deals
Search  for anything...

SUNLU Official Filament Dryer S2, 70℃ Max Temperature, Built-in Circulation Fan, 3D Printer Filament Storage Box Filament Dehydrator, Nylon TPU PLA PETG ABS 3D Printer Filament Dryer Box (Black)

  • Based on 760 reviews
Condition: New
Checking for the best price...

Buy Now, Pay Later


As low as $8.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon

Arrives Oct 15 – Oct 18
Order within 1 hour and 10 minutes
Available payment plans shown during checkout

Color: Upgraded S2 Black


Features

  • 1SUNLU Filament Dryer S2As a leading 3D printing manufacturer, we've invested years of research to develop a product that significantly enhances 3D printing results. Our filament dryer is the great solution, improving the printing effect and optimizing the printing process.
  • 2Importance of 3D Filament DryerFilaments will absorb moisture from the air, especially if they're old or stored in a humid place. Damp filament will cause many printing issues, but a filament dryer can remove the moisture and help reduse these problems.
  • 3Keep Filament Dry During PrintingSUNLU Filament Dryer can be used as a filament spool holder (storage dehydrator), and can dry filament during printing, thereby improving print quality. This feature is especially important for those who have their 3D printers in humid locations such as basements.
  • 4Revive Damp 3D printer FilamentMoisture can be a real problem for 3D printer filament, especially if it has been stored for a while. SUNLU Filament Dryer is specifically designed to remove excess moisture and revive old filament, saving you time and money by avoiding the need to replace damp filament.
  • 5Fast Heating and Even DryingSUNLU filament dryer heats up quickly to the preset temperature, while the built-in spindle ensures that the filament spins continuously for even drying. Additionally, users can customize the drying time (0-99 hours) and temperature (35-70 C) to suit their specific needs.
  • 6Very Simple yet Very EffectiveThe SUNLU filament dryer is user-friendly and straightforward. Equipped with a large touch screen, users can easily set different dry temperatures and times for different types of filaments with just a tap. This easy-to-use feature ensures that users can quickly dry their filaments and achieve superior printing results.
  • 7High Compatibility and CapacityThe SUNLU filament dryer S2 is highly versatile, with a large capacity of 265x274x118mm, making it compatible with filaments of 1.75mm, 2.85mm, and 3.00mm. Additionally, the dryer is designed with a translucent lid that enables users to check on the filament without having to open the lid.

Brand: SUNLU


Material: SUNLU FilaDryer S2, SUNLU Filament Dryer S2, Filament Dryer S2, 3D Printer Filament Dryer S2


Color: Upgraded S2 Black


Item Diameter: 1.75 Millimeters


Unit Count: 1 Count


Product Dimensions ‏ : ‎ 10.43 x 10.79 x 4.65 inches; 3.31 Pounds


Item model number ‏ : ‎ SLUS-FD-S2-BK-US-NEW


Date First Available ‏ : ‎ June 13, 2022


Manufacturer ‏ : ‎ SUNLU


Country of Origin ‏ : ‎ China


Best Sellers Rank: #15,537 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #197 in 3D Printer Accessories #346 in 3D Printing Filament


#197 in 3D Printer Accessories:


#346 in 3D Printing Filament:


Customer Reviews: 4.3 4.3 out of 5 stars 760 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 15 – Oct 18

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Excellent Filament Dryer – Performs Exactly as Expected
Color: Upgraded S2 White
This filament dryer performs exactly as advertised. It effectively removes moisture from filament, resolving any issues I previously had with wet filament. Since using it, I've seen a noticeable improvement in print quality, including better adhesion and no visible changes in filament color. The unit is solidly built and has a sleek, compact design that fits nicely into my workspace without taking up much room. The display is bright, easy to read, and provides all the essential information at a glance. I also appreciate the 360-degree heating system that evenly distributes heat from both the top and bottom, ensuring consistent drying performance. Overall, this is a reliable and well-designed product that has made a noticeable difference in my 3D printing workflow. Highly recommended for anyone looking to maintain optimal filament quality. ... show more
Reviewed in the United States on June 7, 2025 by Kris

  • Just does what it's supposed to.
Color: Upgraded S2 Black
This film and dryer just works. My 3D printed a better base for the bottom of it so it won't tip over as easily not really a design issue per se but just a personal preference. Not a bad price works pretty good.
Reviewed in the United States on May 15, 2025 by Braum

  • Does what it's supposed to with two slight down sides
This is my honest review; Not sponsored and I purchased this item myself. Pros: easy to use and intuitive lighted touch screen display. Multiple temperature presets with the ability to change the set point as needed. (70c max) Run time can be set up to 48 hours and reset as needed. Auto power off function (pro or con depending on need). Internal hygrometer allows you to keep an eye on how much moisture is in your drier or how much moisture is left or inside while drying. Spool spin freely inside of the drier. (Plastic spools work better than cardboard but both can be used) Filament feed hole to print directly from drier that allows a Bowden tube to be fed from. Heating element on base and lid giving roughly 320-degree heating (rough estimate form looks). Slim design that only take up slightly more space than a standard 1k filament spool. Cons: A bit pricey The unit can easily be tipped over backwards or to the side when changing out filament due to the top hatch having weight from the heating element. (This can be avoided with careful use) It can also be pulled or tipped over by bound filament when feeling from the drier. (These issues can be semi resolved by printing a new base and lid catch found online) If you want to print directly from the unit without the filament being exposed to the elements, you will need to purchase the proper size tubing to fit the drier and if the size differs from the type/size your printer uses, you will have to insert your tubing into their provided cut section which can cause some friction or use 3 segments 92 different sizes) to complete the tubing run. Food for thought/mixed feelings: Due to the compact size of the drier, there is no location to use desiccant or desiccant packets to absorb moisture either trapped in from ambient conditions or from being evaporated from your filament. Some users have designed and printed a lid support that keeps it propped up to allow the moisture to escape. (This could also allow moisture to get in though). At one point I printed desiccant pellet containers that fit in the middle of spools but depending on the spool type, these can wiggle free and cause binding of the spool and ruin a print. I shall be testing different designs to find one that works best. Like mentioned above, the tipping issue can be resolved by either finding or designing a base to give a larger footprint to the drier to keep it from tipping over or make it fixed in place. The size only allows standard 1k spools and possibly 2k spools depending on their width. (I currently only have 1k and 3k spools so I cannot test if 2k spools will fit). From a volume and standard point, this makes sense since most people use 1k spools and allows less air volume to keep the moisture down and give a better heating value. Overall, I am satisfied with my purchase and the drier does what it is supposed to do. I have used it off and on for roughly 3 months and at times for multiple days in a row and it still functions properly. At this price you can build something for less that can accommodate larger or multiple spools (which I've done with moderate success) but having something that does the job right out of the box is quite handy, especially if you do not want to spend the time and effort to do so and do correctly. If this review helped, please thumbs up. Eventually I will make a review for my YT channel as well as the drier mods I have done. These will be located on my YT and IG at Zeons Zone (the other non-project zeon channels are just name stealing wannabes). ... show more
Reviewed in the United States on November 6, 2022 by zeonman

  • Works great!
Color: Upgraded S2 Black
Works great! Keeps filament dry. Ive had no clogs and my prints come out excellent.
Reviewed in the United States on May 26, 2025 by Amazon Customer

  • Alright decent you’ll probably forget it in the corner of your room
Color: Upgraded S2 Black
Being honest I just don’t use it much other than for you materials but is still a good buy but I should’ve just got the ams 2 from Bambu when I bought my printer
Reviewed in the United States on May 28, 2025 by Ivan Zhao

  • Awesome!!
Color: Upgraded S2 Black
Works like a charm! Quality of prints improved drastically!!
Reviewed in the United States on May 14, 2025 by Vader

  • Keep looking - too many problems.
Color: Upgraded S2 Black
I bought this with high expectations based on the reviews but based on my experience after having owned this filament dryer for 2 weeks, I should have read the reviews a little closer. I'm using this for both a printer with a Bowden tube and one that is direct drive and this dryer doesn't really work for either. The first thing I noticed which is a major design flaw is that there is no vent or fan on this enclosure to remove the humidified air after the filament has been heated. The best you can do is look for an STL on printables or thingiverse (there are many since this is kind of a huge oversight) for a wedge to insert in the opening to vent the humidified air out. Secondly, there are two PTFE lined holes for filament to exit the enclosure but they are both positioned in a manner that is poorly adapted to allow the filament to flow out of the enclosure easily. No matter how you place the spool or the dryer itself, the filament binds and causes the whole machine to be pulled towards the printer which will interfere with your printer's mechanics while it is actively printing. The rollers at the bottom of the enclosure to allow the filament spool to spin freely are not adequate enough for this device to work reliably while you are printing. At best, this machine is good for drying a roll while not in use prior to storage in a ziplock bag. And again, there are many 3d printable solutions available on thingiverse and printables to address this problem, but for a $70 plastic box with a heating element and a PID, this should not be the case. What I do like about this dryer is the large display with touch screen which is easy to read and navigate for changing settings. The timer also can be extended for long periods of time so no matter how long your print lasts, the dryer will be active. Aesthetically it's pleasing and the LED lights can be turned off so that it won't be bothersome if you have it in a location that that would matter. Unfortunately the major functionality is flawed and requires you to 3d print a solution to make it work properly and that, to me, is unacceptable for a dryer box that costs this much when there are well made solutions that are significantly cheaper. If you are considering buying this dryer, the convenience features of the nice touch screen display do not outweigh the inability for this device to dispense filament on the fly while printing. Look for a different dryer and save yourself some cash. I'll likely return this if they accept it back without a box. Highly disappointed - Sunlu usually does better than this tl;dr Pros: easy to read and navigate display, can set it to remain on for many hours and will not turn off mid print Cons: Poorly designed - no vent or fan to remove humid air from the enclosure while running. Filament will not dispense smoothly from the enclosure due to poor outlet locations in the lid which cause the filament to bind and your extruder will drag the dryer into the printer itself causing major problems and possibly break your 3d printer. There are 3d printed solutions available but you shouldn't have to do that for a $70 dryer. Avoid this product. ... show more
Reviewed in the United States on January 13, 2023 by FergyMcFerguson

  • Graduation gift!
Color: Upgraded S2 Black
Bought as a graduation gift. The item was delivered exactly as described.
Reviewed in the United States on May 3, 2025 by Patricia

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...