SUNLU
SUNLU Official 3D Printer Filament Dryer S4, 4 Spools Capacity, 3 Circulation Fans, 350W PTC Heater, 70℃ Max Temperature, Power Saving Storage Mode, Nylon TPU PLA PETG ABS Filament Dryer Box, Black
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies SUNLU Official 3D Printer Filament Dryer S4, 4 Spools Capacity, 3 Cir… as a solid pick with broad community endorsement in the emulation hardware category, based on 1,055 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. SUNLU's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for emulation hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.5★ average across customer reviews
- ✓ Large, well-vetted feedback pool (1,055 reviews)
- ✓ Backed by SUNLU's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 4 Spool Capacity: SUNLU 3D printer filament dryer S4 can dry up to four 1kg 3D printer filaments, enhancing drying efficiency and printing quality when drying while printing.
- 3D printer Filament Dryer S4 Size: SUNLU filament dryer S4 is notably large in size. External size - 460(L) * 220(W) * 310(H)mm, internal size - 450(L) * 175(W) * 207(H)mm, net weight - 4KG.
- 8 Filament Exit Holes: SUNLU filament dryer S4 features eight filament outlets, ideal for multiple printers and various filament loading angles, smoother loading and printing.
- 350W PTC Heater: SUNLU filament dryer S4 is equipped with a 350W PTC heater, offering safety and higher heating efficiency (50% higher than the FilaDryer S2).
- 3 Circulation Fans: Three high-quality fans circulate air inside, ensuring consistent temperature across the entire area for more even drying, 360° surround heating.
- Temperature Adjustment and Timer: Temperature setting range is 35-70°C, timer setting range is 0-99 hours. Users can adjust parameters to suit filament conditions.
Full Specifications
| Brand | SUNLU |
|---|---|
| Color | Black S4 |
| Weight | 1kg |
| Material | Filament Dryer S4 |
| Model Number | SUNLU 3D Printer Filament Dryer S4 |
| Compatibility | PC |
| Item Diameter | 10 Inches |
| Material Type | Filament Dryer S4 |
| 350W PTC Heater | SUNLU filament dryer S4 is equipped with a 350W PTC heater, offering safety and higher heating efficiency (50% higher than the FilaDryer S2). |
| Number of Items | 1 |
| 3 Circulation Fans | Three high-quality fans circulate air inside, ensuring consistent temperature across the entire area for more even drying, 360° surround heating. |
| Additional Features | Large Capacity, Rapid Heating, Multi-level Safety Protection, Adjustable Humidity |
| Warranty Description | 1 |
| Manufacturer Part Number | SLUS-FD-S4-BK-GMSLUS |
Ready to buy?
SUNLU Official 3D Printer Filament Dryer S4, 4 Spools Capacity, 3 Circulation Fans, 350W PTC Heater, 70℃ Max Temperature, Power Saving Storage Mode, Nylon TPU PLA PETG ABS Filament Dryer Box, Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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