PolyDryer Box — Sealed Filament Storage (Standard & XL)

The PolyDryer Box is a sealed filament storage box built for the Polymaker PolyDryer modular drying system. Choose Standard for common spools (up to 1 kg) or PolyDryer Box XL for larger spools (up to 3 kg) with a built-in hygrometer for easier humidity checks. Store filament in a protected, moisture-resistant enclosure, then swap the box onto a PolyDryer Dry Dock when you want controlled drying.