eSUN eVacuum Kit Pro 3 Filament Vacuum Storage Kit

eSUN eVacuum Kit Pro 3 is a portable vacuum storage kit for 3D printing filament after a spool has been opened. The kit helps protect material from moisture, dust and long-term air exposure, so filament can maintain stable printing quality for longer. This is especially important for moisture-sensitive materials such as PA, ePA, PA-CF, PA-GF, PC, PVA, TPU, PETG, ABS and other plastics that can absorb moisture and affect print quality.

After the original package is opened, filament gradually absorbs moisture from the air. During printing, this can cause popping, bubbles, unstable extrusion, stringing, rough surfaces and weak layer adhesion. eVacuum Kit Pro 3 helps store spools in vacuum bags and reduces the risk of moisture absorption during storage.

Important: eVacuum Kit Pro 3 is a vacuum storage kit, not an active filament dryer. If filament is already wet, it should first be dried in eBOX, eBOX Pro or another filament dryer, and then placed in a vacuum bag with desiccant for storage.

✅ Key advantages

• Vacuum filament storage: helps protect spools from moisture and dust after opening.
• Electric vacuum pump: quickly removes air from the bag without a manual pump.
• One-button start: simple one-button operation.
• Compact and convenient kit: suitable for home use, workshops, service centers and production.
• 10 vacuum bags included: convenient for storing multiple filament spools.
• Dust-proof and humidity-resistant: helps protect filament from dust and moisture.
• Wide compatibility: suitable for PLA, ABS, PETG, PVA, ePA, ePA-CF, ePA-GF, PC, TPU-95A and other materials.
• Works with eBOX: can be used together with eSUN filament dryers for better results.
• BPA-FREE / FDA: the official product page lists corresponding certification.
• Reusable storage: vacuum bags can be reused when handled carefully.

📐 Technical specifications

Specification	Value
Brand	eSUN
Model	eVacuum Kit Pro 3 / eVacuum Kit Pro
Product type	Filament vacuum storage kit
Main function	Vacuum storage of opened filament spools
Pump type	Electric vacuum pump
Operation	One-button start
Number of bags	10 vacuum bags included
Protection	Against moisture, dust and long-term air exposure
Kit weight	0.57 kg
Certification	BPA-FREE / FDA according to the official product page
Compatible materials	PLA, ABS, PETG, PVA, ePA, ePA-CF, ePA-GF, PC, TPU-95A and other filaments

🧩 Suitable materials

• PLA / PLA+: helps store opened spools and protect material from dust.
• PETG: reduces the risk of moisture-related stringing and unstable extrusion after storage.
• ABS / ASA: suitable for storing technical materials after opening.
• TPU: useful for flexible materials that may lose print quality after moisture absorption.
• PVA: especially important to store dry because the material is highly moisture-sensitive.
• PA / ePA / Nylon: nylon absorbs moisture quickly, so vacuum storage is especially useful.
• PA-CF / ePA-CF: helps maintain the dry condition of engineering composites after drying.
• PA-GF / ePA-GF: suitable for storing glass-fiber reinforced engineering materials.
• PC: helps protect material from humidity between print jobs.

When eVacuum Kit Pro 3 is needed

• The spool has been opened but will not be used up immediately.
• Filament is stored for a long time in a workshop or warehouse.
• The material starts popping or bubbling during printing.
• Stringing, rough surfaces or unstable extrusion appear.
• Expensive engineering materials are used: PA, PA-CF, PA-GF, PC, PVA, TPU.
• Several spools need to be stored separately and neatly.
• The room has high humidity.
• Opened spools need longer storage life.

How to use eSUN eVacuum Kit Pro 3

1. Dry the filament before storage if it has already absorbed moisture.
2. Place the spool into a vacuum bag.
3. Add a silica gel pack or another desiccant.
4. If a humidity indicator is available, place it inside the bag.
5. Close the bag using the sealing line.
6. Attach the electric pump to the valve.
7. Press the start button and remove air from the bag.
8. Check that the bag is tightly compressed around the spool and does not leak air.
9. Store the bag in a dry place, away from direct sunlight and heat sources.

Compatibility with eBOX and eBOX Pro

eVacuum Kit Pro 3 works well together with eSUN eBOX and eBOX Pro dryers. The correct workflow is to dry moisture-sensitive filament first, then place the spool in a vacuum bag for storage. This helps preserve the drying result and reduce moisture absorption during storage.

For long prints with moisture-sensitive materials, it is better to use a dry box or eBOX during printing, and eVacuum Kit Pro 3 for storing spools between print jobs.

Vacuum kit vs filament dryer

Device	Function	When to use
eVacuum Kit Pro 3	Removes air from the bag and helps store the spool under vacuum	For storing dry filament after opening the package
eBOX / eBOX Pro	Actively heats and dries filament	For drying wet filament before printing or during printing

Benefits for print quality

Wet filament can seriously reduce print quality even on a well-tuned printer. Vacuum storage helps reduce the risk of moisture absorption after drying and makes printing more stable. This is especially important for engineering materials where failed prints are more expensive: PA, PA-CF, PC, PVA, TPU and other moisture-sensitive plastics.

With proper storage, filament is less likely to show bubbling, hissing, uneven feeding, stringing, weak layer adhesion and surface defects.

📦 Package contents

• eSUN electric vacuum pump.
• 10 vacuum bags for filament storage.
• Sealing clip, if included in the specific batch.
• Desiccant or humidity indicator, if included in the specific package.
• User instruction or package information.

Storage recommendations

• Do not place wet or heavily moisture-loaded filament into the bag without drying it first.
• Use desiccant inside the bag for PA, PVA, PC, TPU and CF/GF composites.
• Check the bag seal periodically.
• If the bag loses vacuum, remove air again with the pump.
• Do not store vacuum bags near heaters or direct sunlight.
• Do not bend the valve or sealing area sharply.
• Use a separate bag for each spool.

🛡️ Safety and limitations

• The kit is intended for storing filament and consumables, not food products.
• Do not use the pump near water or in a wet environment.
• Do not disassemble the electric pump yourself.
• Do not use damaged bags with tears, punctures or defective valves.
• Do not store bags near sharp objects.
• Do not use vacuum storage as a replacement for drying if filament is already wet.

❓ FAQ

 

 

Does eVacuum Kit Pro 3 dry filament?

No. It is a vacuum storage kit. It helps keep already dry filament dry, but it does not replace an active filament dryer. If the material is already wet, it should be dried first.

How many bags are included?

The kit as 10 vacuum bags per kit.

Is the kit suitable for PA and PA-CF?

Yes. The official product page lists ePA and ePA-CF among compatible materials. For these materials, drying first and then vacuum storage is recommended.

Can PLA be stored in the bags?

Yes. PLA is less moisture-sensitive than PA or PVA, but vacuum storage helps protect opened spools from dust and humidity.

Can the bags be reused?

Yes, the vacuum bags can be reused if handled carefully and if the valve and sealing line are not damaged.

Is desiccant needed inside the bag?

Yes, especially for PA, PVA, PC, TPU, PA-CF and other moisture-sensitive materials. Desiccant helps maintain a drier environment inside the bag.

Can it be used together with eBOX Pro?

Yes. eBOX Pro is used for active drying, while eVacuum Kit Pro 3 is used for spool storage after drying.

 

 

🚀 Why buy

eSUN eVacuum Kit Pro 3 is a practical accessory for users who want to store filament properly after opening. The kit helps protect spools from moisture and dust, maintain stable print quality and reduce problems when working with moisture-sensitive materials. It is especially useful for PA, PA-CF, PA-GF, PC, PVA, TPU, PETG, ABS and other filaments that should be stored dry.