Polymaker dryer and storage comparison

Polymaker PolyDryer System, 1 kg Box, and Box XL Compared

The complete system pairs a 68 W Dry Dock with a sealed 1 kg box. The 1 kg box-only and Box XL listings are storage boxes; the XL supports larger spools and needs a separate adapter for Dry Dock connection.

By FilamentSetup editorial · Reviewed · How we assess products

Choose the PolyDryer complete system if you need the 68 W Dry Dock and its included sealed 1 kg box. Choose a 1 kg box-only listing to add storage to a system you already own. Box XL supports up to 3 kg, but its dock adapter is sold separately and Polymaker says XL is not designed for high-power drying.

What each package includes

PackageCapacityDock included?Manufacturer-described use
PolyDryer complete system1 kg boxYes · 68 W Dry DockThree power levels for drying with a sealed storage box
PolyDryer storage box onlyUp to 1 kgNoSealed storage; use with a Dry Dock you already own
PolyDryer Box XLUp to 3 kg · Ø300 × 118 mmNo · optional XL Dock Adapter sold separatelyLarge-capacity sealed storage; Polymaker says dock compatibility is not designed for high-power drying

Polymaker’s complete-system page lists a 68 W heater dock and standard 1 kg box. Its Box XL page lists support for 3 kg spools up to Ø300 × 118 mm and says the XL Dock Adapter is optional. Check the selected package and the actual spool dimensions.

Exact listings compared

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Polymaker PolyDryer complete system, Dry Dock and sealed 1 kg box

Dock and box included

Polymaker PolyDryer complete system

Best for: a first PolyDryer setup that needs the Dry Dock and a sealed 1 kg box.

Polymaker lists a 68 W PTC Dry Dock and three power levels.

Tradeoff: The included box is the standard 1 kg version, not Box XL.

View on Amazon

Listing checked: October 14, 2026

Skip this if: the exact US child changes brand, model or line, material or capacity, diameter or weight, color, or generation.

Polymaker PolyDryer sealed 1 kg storage box only

1 kg box · no dock

Polymaker PolyDryer storage box, 1 kg

Best for: adding a sealed 1 kg box when you already own a compatible Dry Dock.

Polymaker lists the standard box for spools up to 1 kg.

Tradeoff: This listing does not include a Dry Dock or heating element.

View on Amazon

Listing checked: October 14, 2026

Skip this if: the exact US child changes brand, model or line, material or capacity, diameter or weight, color, or generation.

Polymaker PolyDryer Box XL sealed storage box for spools up to 3 kg

XL storage · up to 3 kg

Polymaker PolyDryer Box XL

Best for: sealed storage for a spool up to 3 kg, within the listed Ø300 × 118 mm limit.

The XL Dock Adapter is optional and sold separately; Polymaker says XL is not designed for high-power drying.

Tradeoff: The box is not a heated dryer on its own, and the adapter is not included.

View on Amazon

Listing checked: October 14, 2026

Skip this if: the exact US child changes brand, model or line, material or capacity, diameter or weight, color, or generation.

Check dock and spool fit

Do not treat “box only” and “complete system” as interchangeable names. The complete system has the Dry Dock; either box-only package does not. The 1 kg box is the standard dock pairing. Box XL uses an optional adapter, and Polymaker describes the larger box primarily as sealed storage rather than a high-power drying setup.

For a 3 kg print-through setup, compare the heavy-spool drying and feeding guide. For other dryer types and material schedules, see the filament dryer guide. For four-spool active drying, compare the Creality Space Pi X4 and SUNLU S4.

Common questions

Does the PolyDryer 1 kg storage box include the Dry Dock?

No. The PolyDryer complete system includes the 68 W Dry Dock and standard 1 kg box. The 1 kg storage box-only listing does not include the dock.

Does PolyDryer Box XL include an adapter for the Dry Dock?

No. Polymaker lists the XL Dock Adapter separately. The manufacturer describes Box XL as a large-capacity sealed storage box and says dock compatibility is not designed for high-power drying.

What spool size does PolyDryer Box XL support?

Polymaker lists spools up to 3 kg and Ø300 × 118 mm. Check the actual spool dimensions against both limits.