Best Comgrow 3d Printing Filaments for PETG in 2026: 3 Picks

Quick picks

The best fit for you

• You need to dry two spools with clear monitoring Comgrow Dual-Spool Filament Dryer Box The SH01 model features an LCD screen for clear moisture control during drying.
• You want a budget option for drying two PETG spools Comgrow Dual Spool Filament Dryer The SH02 dryer offers simple one-key controls for fast and uniform drying.
• You require precise and durable white prints for mechanical parts Comgrow 1KG White 1.75mm PETG Filament This filament has a dimensional accuracy of plus or minus 0.02mm for accuracy.

Our 3 picks

1 Best overall

Comgrow Dual-Spool Filament Dryer Box

Best for: Drying two spools simultaneously with clear monitoring

Compatible Material

PLA, PETG, ABS (what this guide is about)

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 sealed storage box and dehydrator for 1.75mm and 2.85mm filaments. It holds two 1kg spools and features a 2-inch LCD screen for real-time temperature and humidity monitoring. The adjustable temperature range is 40°C to 50°C, with drying times set between 6 and 12 hours. This unit helps prevent clogging and layer migration by removing moisture from PLA, PETG, and ABS.

Pros

• Holds two 1kg spools simultaneously
• 2-inch LCD screen for real-time monitoring
• Adjustable temperature up to 50°C
• Sealed design with silicone cable sheath

Cons

• Maximum temperature limited to 50°C
• Drying time capped at 12 hours
• Requires manual setting of temperature and duration

Good fit if

• You need to dry multiple spools at once
• You want real-time monitoring of humidity
• You print with moisture-sensitive materials

Skip if

• You require automatic drying cycles
• You need temperatures above 50°C
• You only have one spool to store

Verdict: Comgrow SH01 Filament Dryer Box is a practical solution for drying two spools at once with clear LCD monitoring, making it ideal for users who need consistent moisture control for sensitive filaments.

2 Best premium

Comgrow Dual Spool Filament Dryer

Best for: drying two spools of PETG at once

Compatible Material

PLA, PETG, ABS, TPU (what this guide is about)

Size

2KG

Dimensions

6.89 × 11.2 × 9.8 inches

Weight

4.4 pounds

View on Amazon: Comgrow Dual Spool Filament Dryer Affiliate link

The Comgrow SH02 is a sealed storage box designed for drying two 1KG spools simultaneously. It uses a 150W PTC heater to reach 70°C quickly, circulating hot air for uniform drying. You get one-key settings for nine filament types, including PETG, PLA, and TPU. The unit measures 11.2 by 9.8 by 6.89 inches and weighs 4.4 pounds. It features multiple sealing rings to keep moisture out while you print.

Pros

• Heats two 1KG spools at once
• 150W PTC heater reaches 70°C
• One-key settings for nine materials
• Sealed design with multiple rings
• Automatic safety cutoff at 130°C

Cons

• Maximum drying temperature is only 70°C
• No remote or app control mentioned
• Manual timer with 98-hour max limit

Good fit if

• You print with hygroscopic materials like PETG
• You need to dry two spools at once
• You want a simple one-key operation

Skip if

• You require temperatures above 70°C
• You need Wi-Fi or app connectivity
• You only have one spool to store

Verdict: Comgrow SH02 Filament Dryer Box offers fast, uniform drying for two spools with simple one-key controls. It is a practical solution for users who print PETG and need reliable moisture management without complex setup.

3 Best budget

Comgrow 1KG White 1.75mm PETG Filament

Best for: Precision mechanical parts and durable holders

Compatible Material

PETG (what this guide is about)

Material Type

PETG

Filament Diameter

1.75mm

Net Weight

1KG

Dimensional Accuracy

+/- 0.02 mm

Features

High Precision

View on Amazon: Comgrow 1KG White 1.75mm PETG Filament Affiliate link

This Comgrow PETG filament offers a 1.75mm diameter with a tight tolerance of +/- 0.02mm for consistent feeding. The white spool weighs 1KG and is designed for high impact resistance and excellent layer adhesion. It is vacuum-sealed and dried for 24 hours to prevent clogs. You will get smooth prints suitable for mechanical parts and holders when using the recommended settings.

Pros

• Dimensional accuracy of +/- 0.02mm ensures precise printing
• Vacuum-sealed and dried for 24 hours to reduce clogs
• High impact resistance suitable for mechanical parts
• Excellent layer adhesion reduces warping risks

Cons

• Smaller 1KG spool size compared to 2KG options
• Requires specific temperature settings of 235-240°C
• Lower recommended printing speed of 30mm/s

Good fit if

• You need high precision for detailed mechanical parts
• You want durable filament with strong layer adhesion
• You prefer vacuum-sealed packaging for freshness

Skip if

• You require faster printing speeds above 30mm/s
• You need larger 2KG spools for extended runs
• You are printing with materials other than PETG

Verdict: Comgrow White PETG 1KG Filament delivers precise, durable prints for mechanical projects, making it a solid choice for users prioritizing accuracy and strength over speed.

Specifications side by side

How to Choose the Right Comgrow PETG Setup

1. Check compatible materials

   Verify that the dryer supports the specific filaments you use. The Comgrow SH02 model accepts PLA, PETG, ABS, and TPU. This broad compatibility makes it versatile for mixed-material workflows. The SH01 dryer supports PLA, PETG, and ABS. If you print TPU, you must choose the SH02. Ensuring compatibility prevents damage to sensitive materials during the drying process. You should match the dryer’s supported materials to your current inventory to avoid unnecessary purchases.

2. Evaluate spool capacity

   Determine how many spools you need to dry at once. Both the SH01 and SH02 models handle two 2 kg spools simultaneously. This dual-spool design saves significant time compared to single-spool dryers. The SH01 has a 9.2-inch length, while the SH02 is 6.89 inches long. These dimensions affect how easily spools fit inside the chamber. You should measure your spool sizes to ensure they fit within the internal dimensions of your chosen dryer model.

3. Assess dimensional accuracy

   Look at the filament tolerance for precise mechanical parts. The Comgrow White PETG 1KG Filament offers a dimensional accuracy of +/- 0.02mm. This tight tolerance ensures consistent extrusion and reliable layer adhesion. It is ideal for projects requiring high precision, such as mechanical parts or durable holders. If you need exact measurements for assemblies, this spec is critical. You should compare this accuracy against other filaments to ensure your prints meet your strict dimensional requirements.

4. Consider color options

   Select a filament color that matches your project needs. The Comgrow PETG filament is available in White. This color provides a clean, professional look for finished parts. It also makes it easier to spot defects or layer shifts during printing. If you require other colors, you must check the specific product listing for availability. The choice of color does not affect the mechanical properties of the PETG material. You should choose a color that suits the final application of your printed objects.

5. Review physical dimensions

   Measure the space available for your drying equipment. The SH01 dryer measures 6.4 inches wide and 9 inches high. The SH02 model is 11.2 inches wide and 9.8 inches high. These footprints determine where you can place the dryer in your workspace. You must ensure your table or shelf can support the weight and fit the dimensions. The SH01 weighs 3.31 pounds, while the SH02 weighs 4.4 pounds. Plan your setup around these physical constraints to ensure a stable and safe environment.

Frequently asked questions

See also

• best comgrow 3d printing filaments under 50
• best comgrow black 3d printing filaments
• best comgrow 3d printers
• best 3D massage chairs