Comgrow SH01 (AK36WG-1200400J) 3D Filament Dryer Box with LCD

For 3D printer users who want filament kept dry while it feeds into a print, the Comgrow SH01 combines an enclosed storage box, adjustable heating, and a spool holder. Its real-time temperature and humidity display helps you monitor the box, while support for standard 1.75mm and 2.85mm filament diameters makes it suitable for a range of common printer setups.

The box can hold two 1kg spools at once, keeping extra filament close at hand during a print. Would a simple spool holder provide the same combination of drying and enclosed storage? This unit adds internal heating and a sealed design for filament storage between uses.

Tech specs

• Model: AK36WG-1200400J
• Type: 3D printer filament dryer and storage box
• Filament diameter: 1.75mm and 2.85mm
• Capacity: Two 1kg spools
• Temperature settings: 40°C, 45°C, and 50°C
• Drying time settings: 6 to 12 hours
• Display: 2-inch LCD with real-time temperature and humidity monitoring
• Controls: Touch buttons
• Inner dimensions: 9.29 x 6.49 x 9.13 inches

Requirements

Set the temperature and drying duration after turning the unit on. Confirm that the screen shows the working state, the dryer operates when that mode is displayed. Route the filament through the outlet counterclockwise so the bottom pulley can feed it smoothly. During drying, leave the sealing hole open so moisture can escape. After use, close the hole and cover the outlet with its plug to help keep the filament dry in storage.

The snap-button lid and silicone outlet sheath support enclosed storage, while the Teflon tube provides a smooth path for filament as it feeds. These details make the box useful both during a print and between printing sessions, rather than serving only as a place to rest a spool.

Best use cases

Use the Comgrow dryer when you want to feed filament from a heated, enclosed box instead of leaving a spool exposed beside the printer. Its adjustable settings let you select from the available temperature and time options, and the display keeps current temperature and humidity visible during operation. The two-spool capacity is useful when you want another roll stored in the same box, for a single wider roll, the box supports one spool up to 150mm wide.

The dryer is designed for 3D printer filament, including PLA, PETG, and ABS, and accommodates the standard diameters listed above. It can suit a home printing setup where filament storage and feeding need to happen in one place. A plain holder focuses on spool support, this dryer adds heating, monitoring, and a closable enclosure for storage.

Questions before you buy

Which filament diameters does it support? It works with standard 1.75mm and 2.85mm filament, so check that your spool’s filament matches one of these sizes.

Can it monitor humidity as well as temperature? Yes. The LCD displays both readings in real time, and touch controls are used to change the temperature and drying duration.

Should the box stay sealed while drying? Open the sealing hole during operation to let moisture drain out. Close it after drying when storing filament in the box.

Final verdict

The Comgrow SH01 is a practical choice for makers who want filament drying and spool feeding in one enclosed unit. Its two-spool capacity, adjustable temperature and time settings, and live humidity and temperature display support a tidy printing workflow with filament stored close to the printer.