【2025 Special Bundle】SUNLU Official Filament Dryer Box S4,Four-Spool 3D Printer Dehydrator with Rapid Heating, Auto Humidity Control, and Advanced Triple Fan Upgrade, Fits PLA,PETG,ABS,TPU,PA,etc.

I bought this unit because I wanted to be able to dry multiple rolls at once and the price was reasonable. Some reviewers have said you cant make it run long enough but if you put it on M2 and set the moisture level (humidity) it will run continuously automatically turning on and off. I was drying some TPU before I stored it and forgot about it for a couple days. The dryer was still kicking on and off. You have 2 exit ports for each of the 4 roll bays for drying while you print.

Why did you pick this product vs others?:This is an awesome product works absolutely perfectly. I love it because it keeps my filament dry and has a room for spare to keep it dry as well.Moisture level:Perfect moisture level maintenanceFilament quality:Keeps the filament ready for youAdhesion:Helps with ad Haitian propertiesQuality:This thing is built wellTemperature range:Love that it gives you the option to change the temperature as you need it

Own two of these for work printers, and now have one at home too. They work extremely well, and the auto dry function keeps your filament ready to use. I have one setup on our PrusaXL and then use another to make sure ABS is dry for the X1Carbon.

I bit the bullet on this when the creality dryer i got was dead within 5 minutes of opening the box. This one works as intended and holds 4 spools. I have not had any issues with drying or staying dry in the box. Printing from the box works and there are a lot of supported filaments. Save your time and money by getting this one. Only gripe is that I didn't get it first. I love creality printers but the dryer boxes are a no go for me.

Be cautious about this filament dryer for any kind of real support. I did reach out to Amazon support. They were thoughtful, but unfortunately, this is something that needs manufacturing support concerning the desiccant. I see there’s a lot of unanswered questions when it comes to that. I’m going to head and return this due to lack of support. There’s no real directions and the website is not very customer support oriented. Unless you’re an avid filament enthusiast, you left in limbo. This was my first filament dryer and I was excited. I watched a few dozen videos on it, but there are a lot of unanswered questions on set up.

This is a wonderful quad roll heater… it would be even better if the LEDs still worked after a week. Box simply works, but the manual is less than comprehensive. Still, it’s probably one of the better products out there for heating multiple roles of filament, and allowing them to be used or printed directly from the filament heater box.

To me, this is an essential invention. I can't understand why no one else has made something like this yet. I was constantly swapping rolls among smaller enclosures. Now I store my main filaments in the box and just directly print from it most of the time.Good move Sunlu... This led to me trying your filament, and I am happily surprised there too.

So far I love this thing I have only had it a few days now but is working great!