Quick Summary
The Original Prusa USS Airtight Filament Storage Box is a filament storage box for direct printing. It is designed with a sealed PTFE-compatible port, so filament can feed out while the lid stays closed. The box also includes a built-in digital hygrometer and thermometer for checking the internal environment.
It is made for standard 1 kg spools and smaller speciality rolls, and the design includes side access points for manual spool movement and desiccant refreshes.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Filament storage box for direct printing. |
| Spool support | Fits standard 1 kg spools and smaller speciality rolls. |
| Direct-feed port | Sealed PTFE-compatible port allows filament to feed out without opening the lid. |
| Monitoring | Built-in digital hygrometer and thermometer show the internal environment in °C and °F. |
| Desiccant capacity | Holds up to 50 g of silica gel. |
| Access | Mini side covers allow manual spool turning and desiccant refreshes without unsealing the box. |
| Organisation | Flat sides support stable stacking, and an integrated label holder helps with material identification. |
What to Compare Before Buying
- Spool size: This box is made for standard 1 kg spools and smaller rolls, so check that your filament spool matches those dimensions.
- Printing setup: The direct-feed port and bayonet-style mounting approach matter if you want to feed filament straight to the printer.
- Humidity control: Compare the built-in monitoring and silica-gel capacity with the storage conditions you want to maintain.
- Organisation: If you store several materials, the label holder and stackable shape can help with sorting and storage planning.
Before You Decide
Check that your spool size suits the box, and make sure your printer setup is compatible with direct filament feed through the port. If you want humidity tracking and a tidy storage system for filament, the monitoring and labelling features are central to this design.
