SpoolSignal

Filament care / Informed choices

Find the right
filament dryer.

Compare 14 3D printer filament dryers by temperature, capacity and drying zones. Make a shortlist that fits the way you print.

Manufacturer-sourced specifications · Practical buying guides

Orange filament spool feeding a 3D printer against a dark background.
An orange filament spool feeding a 3D printer. General filament imagery; not a dryer test. Photo: Jakub Zerdzicki / Pexels.

Find your dryer

01 / MATCH THE REQUIREMENTS

Use the drying temperature specified by your filament maker. Leave it blank to explore. Results screen the published ceiling and documented minimum where available. Other minimum settings remain unverified. Check the exact manual: a match does not confirm temperature accuracy, spool fit or printer compatibility.

14 models to explore

Bambu AMS 2 Pro — manufacturer product image
Product image © Bambu Lab. Source.

Printer material system

Bambu AMS 2 Pro

Drying within a compatible Bambu material workflow.

Spools*
4
Max temp
65°C
Zones
1

Printer compatibility and required accessories must be checked separately.

Model details →
Creality Space Pi single-spool filament dryer with a clear cover and front display.
Product image © Creality. Source.

Single spool

Creality Space Pi

A one-spool dryer with a documented 45–70°C setting range.

Spools*
1
Max temp
70°C
Zones
1

The original Space Pi is a different size from the two-spool Plus and four-spool X4.

Model details →
Creality Space Pi V2 Plus filament dryer holding two spools under a clear cover.
Product image © Creality. Source.

Two-spool chamber

Creality Space Pi V2 Plus

Two-spool capacity for a batch that shares one drying schedule.

Spools*
2
Max temp
75°C
Zones
1

V2 Plus has a 75°C published ceiling; the US listing showed sold out on 13 September 2026.

Model details →
Creality SpacePi X4 filament dryer with two clear lids, four spools and a front touchscreen.
Product image © Creality. Source.

Two controlled zones

Creality SpacePi X4

Four-spool capacity split across two independently controlled chambers.

Spools*
4
Max temp
85°C
Zones
2

The X4 has a published 45–85°C range. Do not substitute specifications for the newer X4L.

Model details →
EIBOS Easdry filament dryer with a clear front door and side temperature knob.
Product image © EIBOS. Source.

Single spool / dial control

EIBOS Easdry

A compact one-spool option with a 40–65°C control dial.

Spools*
1
Max temp
65°C
Zones
1

The published reel limit is under 220 mm diameter × 72 mm width; verify hub fit too.

Model details →
EIBOS Polyphemus filament dryer with a clear enclosure, carry handle and front display.
Product image © EIBOS. Source.

Two spools / motorized rotation

EIBOS Polyphemus (80°C option)

A rotating-spool dryer with a selectable 80°C version and shared chamber.

Spools*
2
Max temp
80°C
Zones
1

Both 70°C and 80°C variants are listed. This comparison screens the 80°C option only.

Model details →
EIBOS Tetras filament dryer with four chambers and four front control panels.
Product image © EIBOS. Source.

Four-zone AMS add-on

EIBOS Tetras

Four separately controlled drying chambers for a compatible Bambu AMS.

Spools*
4
Max temp
65°C
Zones
4

An AMS add-on, not a complete standalone dryer. AMS 2 Pro needs the specified printed adapter.

Model details →
Polymaker PolyDryer — manufacturer product image
Product image © Polymaker. Source.

Dock + removable box

Polymaker PolyDryer

A modular drying dock paired with removable storage.

Spools*
1
Max temp
Power levels
Zones
1

Three power levels; not a freely selectable temperature setpoint.

Model details →
SUNLU E2 — manufacturer product image
Product image © SUNLU. Source.

Higher-temperature chamber

SUNLU E2

A higher published ceiling for demanding material requirements.

Spools*
2
Max temp
110°C
Zones
1

Spool temperature limits matter as much as the dryer's ceiling.

Model details →
SUNLU S2 — manufacturer product image
Product image © SUNLU. Source.

Single spool

SUNLU S2

A focused option for one spool at a time.

Spools*
1
Max temp
70°C
Zones
1

Confirm the exact revision and spool clearance before ordering.

Model details →
SUNLU S4 — manufacturer product image
Product image © SUNLU. Source.

Four-spool chamber

SUNLU S4

Batch capacity with one shared temperature setting.

Spools*
4
Max temp
70°C
Zones
1

Four spools do not mean four independently controlled zones.

Model details →
SUNLU S4 Pro — manufacturer product image
Product image © SUNLU. Source.

Two controlled zones

SUNLU S4 Pro

Two temperature and time settings across four spools.

Spools*
4
Max temp
85°C
Zones
2

Two zones offer more scheduling flexibility than one shared chamber.

Model details →
Sovol SH02 filament dryer holding white and pink spools beneath a clear curved lid.
Product image © Sovol. Source.

Two-spool chamber

Sovol SH02

A two-spool shared chamber with a documented 40–70°C setting range.

Spools*
2
Max temp
70°C
Zones
1

The SH02 and SH03 have different capacity and control arrangements.

Model details →
Sovol SH03 filament dryer with two clear lids and four colorful spools.
Product image © Sovol. Source.

Two controlled zones

Sovol SH03

Four nominal spools across two independent 45–85°C chambers.

Spools*
4
Max temp
85°C
Zones
2

The 0–99°C display range is not its working range; the specification lists 45–85°C.

Model details →

*Nominal capacity for standard spools. Reel dimensions and bundle configuration must be checked. Alphabetical model order, not a performance ranking.

Start with the right question.

All buying guides →

Beyond the spec sheet

A bigger number needs context.

Maximum temperature, spool capacity and independent zones describe different capabilities. Check the manual, then look for measurements of a loaded dryer.

How we compare →

Cost per cycle

Put a number on running costs.

Use average power, your electricity rate and your drying schedule to estimate the ongoing cost of your setup.

Open the calculator →