SUNLU Official Filament Dryer S4, 2025 Newest 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control, Fast Heating, Temperature Balance, Filaments Storage Box

Good looking unit at a reasonable price. Works well. Easy to set up and use. There is a strong smell of plastic fumes but I suppose that's to be expected. Took longer to arrive than expected though

I keep my abs rolls in this and on mode 2 so that it keeps the moisture down to a minimum. Printing directly from the sunlu drier is super easy and i have the 4 tubes run up the side of my printer then select which colour i need that day and feed it into my enclosure.

Great quality, works well and looks nice. The scanning LED when running is a nice touch and isn't too bright of overstated. Comes with tubing etc to get the filament to your printer without ever being in the open air.I would recommend this to anyone who's having print issues: Creality printers are known for being finicky and as soon s the summer started and humidity went up, mine went haywire, wouldn't adhere, kept clogging, stringing, blobbing, but as soon as I added this to my setup everything went back to normal.I can keep 4 large rolls in here and in mode 2 (it maintians the humidity by turning on occasionally) it keeps them in perfect order. I cycle a couple of the rolls between this and my airtight storage every week which keeps that at around 20% too.I definitely wouldn't do without a dryer now, this one would be my first choice.

The **SUNLU Official Filament Dryer S4** is a game-changing accessory for 3D printing enthusiasts, designed to ensure optimal filament performance. This **new generation 3D printer filament dry box** helps maintain the quality of your filament by removing excess moisture that can compromise print quality. Whether you're using PLA, ABS, PETG, or other filaments, the **S4 dryer box** keeps them dry and ready for use.Featuring an **adjustable temperature control** and a **user-friendly interface**, the dryer allows you to customize settings based on the filament type. The **built-in timer** ensures consistent drying without overexposing your materials. Its compact and sleek design makes it easy to integrate into any workspace, while the **clear viewing window** lets you monitor the filament without opening the box.For those who value high-quality, consistent 3D prints, the **SUNLU Filament Dryer S4** is an indispensable tool. It helps prevent issues like stringing, bubbling, and weak layer adhesion, ensuring your prints come out perfect every time. A must-have upgrade for anyone serious about 3D printing!

100% useful for getting top notch prints with some of the more difficult filaments.Only marked it down a star because the catches to open the doors are a bit fiddly.There are a number of downloadable STLs to replace or clip over the handles so it's not just me.

A good dryer for most filament types. Presets for the different filaments such as PLA, PETG, ABS, ASA etc. simple touch screen operation and the filament just dries then is kept dry.4 reels is good but they all must be of the same type.You can keep the reels in this dry box and feed them directly to your machine.All we need now is this coupled with an AMS and it would be perfect.

I got this to replace my no-name 2 roll dryer which had a low max tempreture. This is a fanstatic drying and has made the experience of working with PETG a lot more bearable for me.Very happy with it!

Overall, I have found this to be really good at drying filament that has been stored badly. Only using it as a stand alone dryer - not for feeding from.Very happy.