Best Comgrow 3d Printing Filaments Under $50 in 2026: 3 Picks

Quick picks

The best fit for you

• You need to dry multiple spools at once Comgrow Dual-Spool Filament Dryer Box The SH01 Box handles multiple spools with a transparent design and manual controls.
• You want unique rainbow prints with eco packaging Comgrow Tri-Colors Silk PLA 1.75mm This silk PLA features a mix color effect and precise dimensional accuracy of plus or minus 0.02mm.
• You build durable parts and large projects Comgrow PETG 1.75mm 6KG The 6KG PETG spool offers high volume and durability for functional prototypes.

Our 3 picks

1 Best overall

Comgrow Dual-Spool Filament Dryer Box

Best for: drying multiple spools simultaneously

Compatible Material

PLA, PETG, ABS

Dimensions

9.2 × 6.4 × 9 inches

Weight

3.31 pounds

View on Amazon: Comgrow Dual-Spool Filament Dryer Box Affiliate link

The Comgrow SH01 is a filament dryer and storage box designed to keep 1.75mm and 2.85mm filaments dry. It holds two 1kg spools of PLA, PETG, or ABS. The unit features a 2-inch LCD screen for real-time temperature and humidity monitoring. You can set drying times from 6 to 12 hours at temperatures between 40°C and 50°C. This device helps prevent clogging and poor adhesion caused by moisture.

Pros

• Stores two 1kg spools simultaneously
• 2-inch LCD screen with touch controls
• Adjustable temperature from 40°C to 50°C
• Sealed design with silicone cable sheath

Cons

• Maximum temperature limited to 50°C
• No Wi-Fi or app connectivity
• Manual operation only

Good fit if

• You print with moisture-sensitive materials like PLA or PETG
• You need to dry two spools at once
• You want real-time monitoring via an LCD screen

Skip if

• You require remote control via an app
• You need temperatures above 50°C for drying
• You only print with one spool at a time

Verdict: Comgrow SH01 Filament Dryer Box is a practical storage solution for users who need to maintain dry conditions for multiple spools. It suits those who value manual control and real-time display feedback over remote connectivity.

2 Best budget

Comgrow Tri-Colors Silk PLA 1.75mm

Best for: unique rainbow prints with eco packaging

Material Type

PLA

Filament Diameter

1.75mm

Max Print Speed

70mm/s

Surface Finish

Silk

Color Effect

Rainbow

Dimensional Accuracy

+/- 0.02mm

View on Amazon: Comgrow Tri-Colors Silk PLA 1.75mm Affiliate link

This Comgrow Tri-Colors Silk PLA filament features a unique coextruded design with red, blue, and yellow strands creating a rainbow effect. It offers a smooth, shiny surface finish ideal for arts and crafts. The 1.75mm diameter ensures compatibility with most FDM printers. With a dimensional accuracy of +/- 0.02mm, it provides consistent printing results. The eco-friendly paper spool and vacuum packaging help keep the material dry and dust-proof for long-term storage.

Pros

• Tri-colors coextruded design creates a unique rainbow effect
• Silk glossy smooth appearance for arts and crafts
• Dimensional accuracy of +/- 0.02mm ensures stability
• Eco-friendly paper spool and vacuum packaging

Cons

• Limited to PLA material type
• Max print speed capped at 70mm/s
• Only one weight option available

Good fit if

• You want a unique rainbow visual effect
• You prioritize dimensional accuracy
• You prefer eco-friendly packaging

Skip if

• You need high-speed printing
• You require other material types
• You prefer standard single-color filaments

Verdict: Comgrow Tri-Colors Silk PLA 1.75mm is a solid choice for creators seeking distinctive rainbow prints with reliable accuracy. It fits users who value visual uniqueness and eco-conscious packaging over high-speed production.

3 Best tough

Comgrow PETG 1.75mm 6KG

Best for: Durable mechanical parts and large projects

Material Type

PETG

Filament Diameter

1.75mm

Net Weight

6KG

Dimensional Accuracy

+/- 0.02 mm

Features

High Precision

Resin Type

Tough

View on Amazon: Comgrow PETG 1.75mm 6KG Affiliate link

This Comgrow PETG filament offers a 6KG spool of 1.75mm material with a tight diameter tolerance of +/- 0.02mm. The vacuum-sealed packaging prevents moisture absorption, ensuring smooth feeding without clogging or bubbles. It provides excellent layer adhesion and impact resistance, making it suitable for mechanical parts. You get a substantial supply for larger projects or extended printing sessions.

Pros

• 6KG spool size for extended use
• Tight +/- 0.02mm diameter tolerance
• Vacuum sealed to prevent moisture
• High impact resistance for durable parts

Cons

• Limited to single-color black option in this pack
• Requires specific nozzle temperature of 235-240°C
• Lower recommended printing speed of 30mm/s

Good fit if

• You need durable parts for mechanical applications
• You prefer larger spools to reduce filament changes
• You want moisture protection for sensitive prints

Skip if

• You require multi-color or rainbow effects
• You need high-speed printing capabilities
• You are looking for transparent or silk finishes

Verdict: Comgrow PETG 1.75mm 6KG is a reliable choice for users who prioritize durability and volume. It fits those building functional prototypes or sturdy household items who do not need colorful aesthetics.

Specifications side by side

How to choose the right one

1. Check filament diameter

   You must verify the filament diameter matches your printer’s extruder requirements. The Tri-Colors Silk PLA listed here uses a 1.75 mm size. This is the standard width for most consumer 3D printers. Using the wrong diameter can cause feeding issues or poor layer adhesion. Always check your printer’s manual for the supported sizes. Comgrow offers this specific dimension to ensure compatibility with a wide range of machines. Matching this spec prevents jams and ensures consistent extrusion flow during your prints.

2. Review dimensional accuracy

   Precision in filament thickness is critical for print quality. The Tri-Colors Silk PLA boasts a dimensional accuracy of plus or minus 0.02 mm. This tight tolerance ensures uniform extrusion and reduces clogging risks. If your printer has a small nozzle, this accuracy becomes even more important. Inconsistent diameter leads to under-extrusion or over-extrusion. You should look for this specification when buying budget filaments. Higher accuracy results in smoother surfaces and better mechanical strength in your final objects.

3. Match material to use

   Select the material based on your project’s functional needs. The PETG option is ideal for durable mechanical parts and large projects. It offers strength without the complexity of ABS. The Silk PLA is better for visual displays due to its unique finish. The Dryer Box supports PLA, PETG, and ABS for storage. You should choose PETG for functional prototypes that require toughness. Choose PLA for aesthetic models where durability is less critical. Understanding these material differences helps you avoid failed prints and wasted material.

4. Consider storage needs

   Filament absorbs moisture from the air, which degrades print quality. The Comgrow Dual-Spool Filament Dryer Box addresses this issue directly. It allows you to dry multiple spools simultaneously. This unit is best for users who print frequently or live in humid climates. It features a transparent design for easy monitoring. You can maintain dry conditions for PLA, PETG, and ABS. Keeping filament dry ensures better layer adhesion and fewer stringing issues during printing.

5. Assess volume requirements

   Determine how much filament you need for your upcoming projects. The PETG option comes in a 6KG size, which is substantial for large builds. This volume suits users who make functional parts or large prototypes regularly. The Silk PLA comes in a smaller 1-pound spool, suitable for smaller decorative items. The Dryer Box holds 2 kg of filament. You should buy larger spools if you print often. Smaller spools are better for testing new materials or colors before committing to a bulk purchase.

Frequently asked questions

See also

• best comgrow 3d printing filaments for PETG
• best comgrow black 3d printing filaments
• best comgrow 3d printers
• best processors under 50