Special Features

Material And Construction：These filament vacuum storage bags are constructed from PE and PA composite material, providing a balance between flexibility and tear resistance for repeated use. The 30x34 cm size accommodates standard 1kg filament spools commonly used in 3D printing, including 1.75mm, 2.85mm, and 3mm diameter filaments. Each bag measures approximately 0.09mm in thickness, offering sufficient material strength for vacuum sealing while remaining flexible enough for easy spool insertion and removal.
Sealing System：Each vacuum bag features a double sealed zipper closure combined with a single-sided embossed air channel design. The double zipper creates two parallel sealing lines, reducing the risk of air leakage compared to single-zipper designs. The embossed texture on one interior surface allows air to flow toward the vacuum port during extraction while maintaining seal integrity after pumping.
Humidity Monitoring：This kit includes 25 six-point humidity indicator cards that change color based on relative humidity levels. The cards initially display light brown in dry conditions and transition to light green as humidity increases. Users can place a card inside each vacuum bag to monitor moisture levels without opening the seal. The six-point scale provides readings from 10% to 60% RH, allowing users to determine when filament requires drying before printing.
Quantity Configuration：This 50-bag set provides sufficient vacuum storage capacity for filament collections of various sizes, with 25 humidity indicator cards and 4 sealing clips included as complementary components. For 3D printing businesses or educational labs with shared filament inventory, the 50-piece quantity supports organized storage across multiple users or material types without requiring bag reuse between different filament colors or compositions.
Application Versatility：While designed primarily for 3D printer filament storage, these vacuum bags serve additional functions including food preservation and dry goods storage. The moisture-proof and dust-proof design helps protect dry foods including grains, dried fruits, and snacks from humidity exposure. For users who dehydrate their own foods or store bulk dry ingredients, these bags provide an alternative to single-use plastic storage options, with the same humidity monitoring capability applicable to food storage contexts.

Description

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Features:

50-pack reusable vacuum storage bags for 3D printer filament

PE+PA composite material with double sealed zipper closure

30x34 cm size accommodates standard 1kg filament spools

Transparent design for visual inspection of contents

Includes 25 humidity indicator cards and 4 sealing clips

Specifications:

Product Name: 50 Vacuum Bags (without pump) + 6-Point Humidity Card [25 per pack] + 4 Sealing Clips

Color: Transparent + Blue

Material: PA + PE

Single Bag Weight: 20g

Total Weight: 1290g

Product Dimensions (Each Bag): 30x34 cm / 11.8x13.4 inch

Packaging Dimensions: 30x20x10 cm

Package Contents: 50 x Vacuum Storage Bags, 25 x 6-Point Humidity Indicator Cards, 4 x Sealing Clips

Remarks:
Due to manual measurement, there may be some errors in size.
Due to different screen displays, colors may vary slightly.

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50Pcs 3D Filament Vacuum Storage Bags, Filament Storage Bags Vacuum Sealed Kit Reusable PE+PA Bag with 25 Humidity Indicator Cards and 4 Sealing Clips for Filaments Spool Keeping Files Dry

Special Features

Description

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