4 Pack Filament Storage Box 4L Each Holds 1KG 1.75mm Spool Airtight Moisture Control 3D Printer Filament Dry Box with Hygrometers Desiccant Packs and Labels for PLA PETG ABS TPU

Features

• Airtight Moisture Control: Each clear filament storage box uses a gasket lid, locking clips, desiccant packs, and a digital hygrometer to create a practical dry storage workflow for opened spools. Check the humidity before printing and keep PLA, PETG, ABS, TPU, and similar materials away from dust and normal room moisture. This helps reduce wet filament issues such as stringing, brittle sections, and unstable extrusion between print jobs
• Complete 4 Box Kit: The set includes 4 clear filament storage containers, 4 digital hygrometers, eight 50g desiccant packs, 8 writable labels, and 1 adhesive dot sheet. Each container measures about 9.5 by 4.4 by 9.7 inches and is designed for one standard 1KG 1.75mm spool. Use the labels to mark PLA, PETG, ABS, TPU, color, dry date, purchase date, or remaining filament for easier shelf organization
• Visible Humidity and Fast Sorting: The transparent body lets you see filament color, spool position, and remaining amount without opening every container. The front hygrometer gives a quick temperature and humidity check, while labels help identify PLA, PETG, ABS, TPU, nylon, or support material by shelf or printer station. This makes daily material selection easier in hobby rooms, classrooms, workshops, and shared 3D printing spaces
• Sized for Common Spools: Each container measures about 9.5 by 4.4 by 9.7 inches and is designed for most standard 1KG 1.75mm filament spools applied by home printers and small workshops. Because spool brands vary, compare your spool diameter, width, and hub style before purchase. The slim upright shape keeps one roll separated from other materials and helps organize multiple spools on shelves, carts, or workbenches
• Passive Dry Storage Note: This is an airtight storage system with desiccant and humidity monitoring, not an electric heated filament dryer. If a spool has already absorbed moisture, dry it first with a proper dryer or recommended drying method, then store it in the box to help maintain conditions. The lid opening supports short access or filament guiding, while closed storage helps reduce dust, splashes, loose bags, and misplaced rolls