The Polymaker PolyBox filament storage box helps maintain a suitable environment for storing and printing with 3D filaments. It holds two 1 kg spools or one 3 kg spool and is compatible with all 3D printers. It features a thermo-hygrometer for monitoring temperature and humidity, which is controlled using silica gel packets.

It is designed for hygroscopic materials such as PolySmooth (PVB), PVA, and nylon. To limit moisture absorption during storage or printing, the humidity inside the box should be kept below 15%.

• Spool capacity: 2 spools up to 52 mm wide or 1 spool up to 120 mm wide
• Maximum temperature: 70 °C
• Temperature range: -50–70 °C (±1 °C)
• Humidity range: 10–99% (±5%)
• Resolution: 1
• Response time: 10 seconds
• Desiccant: 2 × 100 g silica gel packets
• Battery: LR44