SUNLU S4 Filament Dryer 4-Spool 3D Printer Filament Dryer Box

SUNLU S4 Filament Dryer — 4-Spool Professional Grade

Keep your 3D printing materials in peak condition with the SUNLU S4, a 4-spool filament dryer designed for serious makers. Whether you're printing with PLA, PETG, ABS, or nylon, moisture is the enemy of print quality — and the S4 eliminates that problem entirely.

Key Features:

• 4-Spool Capacity — Dry multiple filaments simultaneously, saving time and ensuring consistent results across materials
• 70°C Max Temperature — PTC heater maintains precise temperature control without hot spots that could damage filament
• 350W PTC Heating Element — Fast, even heat distribution with automatic temperature regulation
• 12L Large Capacity — Fits standard 1kg spools plus larger 2.5kg spools
• Smart Timer — Programmable drying cycles from 1-99 hours with auto-shutoff
• Universal Compatibility — Works with all standard filament diameters (1.75mm and 2.85mm)

Why It Matters:

Moisture-absorbed filament causes stringing, bubbling, poor layer adhesion, and brittle prints. The SUNLU S4 keeps your PLA, PETG, ABS, TPU, and nylon dry and ready to print — extending filament life and improving print quality across every spool.

Perfect for makers who demand consistency and want to protect their filament investment.