Polymaker PolyDryer Box storage container for filaments

The Polymaker PolyDryer Box is a passive storage container that reliably protects 3D printing filaments from moisture and dust. The box features excellent sealing that limits the increase in humidity inside to below 5% over 30 days at 20 °C and 60% humidity in internal tests. A battery-powered hygrometer displays the current humidity inside the container in real-time. The included color-changing silica gel desiccant (30g) absorbs residual moisture and indicates the level of saturation by changing color from orange (dry) to dark green (saturated). The box accommodates spools with a maximum diameter of 205 mm and a width of 78 mm, covering standard spools from 0.25 kg to 1 kg. A central spool holder with a support roller enables the smooth rotation of the spool. Thanks to the filament outlet openings and the included PTFE tube (50 cm), printing can be done directly from the closed box. The modular design allows for stacking multiple boxes and is compatible with the optional PolyDryer heating unit (sold separately). Supported filaments have diameters of 1.75 mm, 2.85 mm, and 3 mm, made of materials such as PLA, PETG, ABS, ASA, TPU, PA, and PC.

Recommended Accessories:

• Polymaker PolyDryer Box with Heating
• 500g Silica Gel Desiccant with Color Indicator

Features:

• Excellent sealing limits the increase in humidity inside to below 5% over 30 days
• Battery-powered hygrometer allows real-time monitoring of humidity inside the container
• Color-changing silica gel desiccant visually indicates the level of saturation through a color change
• Filament outlet openings and PTFE tube allow printing directly from the closed box
• Modular stacking system enables space-saving combination of multiple storage boxes
• Compatible with spools up to 205 mm in diameter and 78 mm in width for standard filament sizes

Application Examples:

• Long-term storage of moisture-sensitive filaments such as PA, PVA, or TPU
• Direct printing from the closed box for consistent filament quality during the printing process
• Space-saving storage of multiple filament spools through stackable design
• Protection of rarely used specialty filaments from moisture absorption in storage or workshop
• Mobile use when transporting filament to different printing locations

Documentation:

• Polymaker Wiki

Technical Data:

• Manufacturer: Polymaker
• Manufacturer SKU: PX01003
• EAN: 6938936714262
• Type: Passive Storage Container (without heating)
• Maximum Spool Diameter: 205 mm
• Maximum Spool Width: 78 mm
• Compatible Spool Sizes: 0.25 kg, 0.75 kg, 1 kg
• Compatible Filament Diameters: 1.75 mm, 2.85 mm, 3 mm
• Hygrometer: Battery-powered, integrated
• Desiccant: 30 g color-changing silica gel
• PTFE Tube: 50 cm
• Power Supply: None (passive system)
• Operating Temperature: 20–35 °C
• Product Dimensions: 235 × 120 × 235 mm
• Product Weight: 700 g
• Packaging Dimensions: 260 × 260 × 140 mm
• Gross Weight: 1206 g

Scope of Delivery:

• 1× PolyDryer Storage Container
• 1× Spool Support Roller
• 1× Hygrometer (battery-powered)
• 1× PTFE Tube (50 cm)
• 2× Protective Caps
• 1× Silica Gel Desiccant (30 g)