Filament Dryer SP2 and Storage Box - Fast 70C Drying for 3D Filament

In this review of the Filament Dryer SP2 and Filament Storage Box the bottom line is simple: this is a practical all-in-one solution for hobbyists and small workshops that need reliable filament drying and sealed storage. It combines a detachable dryer and a sealed storage base so users can dry up to two 1kg spools or larger spools and then keep them protected from moisture. The SP2 stands out for rapid, consistent heating to 70C and a clear HD LCD touch screen that makes temperature and humidity control straightforward during long prints.

Key Features

• All-in-one drying and storage: The detachable dryer and base allow you to dry filament then seal the same box for storage without moving spools to another container, reducing re-exposure to humidity.
• Fast, even heating: A 250W PTC heating element brings the chamber to a steady 70C in about 15 minutes and delivers 360 surround heating for consistent moisture removal across the spool.
• Multiple spool compatibility: Rollers and an adjustable bar holder accept small paper spools up to larger 3kg spools and standard 1.75mm and 2.85mm filament diameters, so most filaments fit.
• Feed-through while drying or sealed: Six silicone feed holes with PTFE tubes let you route filament directly from the box to a printer while the filament is still being dried or stored.
• Clear monitoring and control: The HD LCD touch screen displays temperature, time and humidity with presets to match common filament types, making setup and monitoring simple.
• Sealed protection: Sliding latches on the lid and gaskets on the base give strong sealing to keep moisture out when used as a storage box.

Who It's For

This product is ideal for hobbyists, educators and small workshop users who print regularly with moisture-sensitive materials such as PLA, PETG, TPU, ABS, PA or PC and want a convenient way to both dry and store filament without extra containers. The ability to feed filament directly to a printer makes it useful for continuous printing or for long prints that require the filament to remain dry while in use.

Users who primarily print rarely or who need an industrial-scale drying rig for many spools simultaneously may want a larger dedicated dryer system. Also, those who need networked remote control or integrated spool tracking should look for more feature-rich models with those specific functions.

Pros & Cons

Pros

• Effective 70C heating with a 250W PTC element for quick drying and steady temperature control.
• Detachable dryer and storage base lets you dry and then seal filament in the same enclosure to minimize reabsorption of moisture.
• Multiple feed holes and PTFE tubes make it easy to run filament to a printer while drying or storing spools inside.
• Clear HD LCD touchscreen and hygrometer provide visible control of temperature and interior humidity.

Cons

• The unit is sized for small shops and home users; those needing simultaneous drying for many spools may require a larger capacity solution.

Specifications

Product type	Filament dryer and storage box
Max temperature	70C
Heating element	250W PTC
Spool capacity	Up to two 1kg spools or larger 3kg with rollers
Filament diameters	1.75mm and 2.85mm
Controls	HD LCD touch screen with temperature/time/humidity display

Our Verdict

The Filament Dryer SP2 and Storage Box is a strong value for users who need dependable drying and sealed storage in one compact package; its rapid 70C PTC heating, direct feed-through capability and clear LCD make it especially useful for regular printing with moisture-sensitive filaments. For small studios and hobbyists who want fewer drying steps and better humidity control this unit is a sensible, cost-effective choice.

Frequently Asked Questions

Can I feed filament to my printer while drying?
Yes, the box provides six silicone feed holes and PTFE tubes that allow filament to be routed directly to a printer during drying or while sealed in storage.

What filament types and diameters are supported?
The SP2 is compatible with common materials including PLA, PETG, TPU, ABS, PA and PC and supports standard diameters 1.75mm and 2.85mm.

How quickly does it reach drying temperature?
The 250W PTC heating element typically heats the chamber to the steady 70C set point in about 15 minutes while maintaining quiet, even heating.