Is this 3D model free to download?

Yes, KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by knollabs, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture 3D printable model by knollabs

KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture photo 1

KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture photo 2

KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture photo 3

KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture photo 4

KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture

Source: Thingiverse by knollabs

The KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture is a free printable 3D model from Thingiverse by knollabs. The KNOL Labs 120mm Hanging Carbon Filter is a printable, refillable carbon filter designed around an 80mm server fan and 4" flexible ducting. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

30 saves Source: Thingiverse Updated 2026-10-09 License: CC-BY-NC-ND · non-commercial Category: Outdoor & Garden

Tags: carbon filter, grow light, grow tent, growbox, horticulture, space bucket, spacebucket

About this model

The KNOL Labs 120mm Hanging Carbon Filter is a printable, refillable carbon filter designed around an 80mm server fan and 4" flexible ducting. The integrated 80mm server fan cuts down on the needed space within your enclosure, and the recommended fan is strong enough to still get frequent air changes through the filter. Designed to work with the: - Filter Exhaust Bulkhead ( - Passive Air Inlet ( Recommended Components: - Carbon Filter Pellets: - 80mm Server Fan: - Fan Power Supply: - Hooks: - Superglue: - Hose Clamps: - Ducting: Recommended Print Instructions: - Print in the orientations pictured - The only part that should need support is the Fan End Assembly Instructions: 1. Insert a short section of filament into the channel of the "Hanging Loops" on the Filter Body and trim flush. Use …

Frequently asked questions

Is this 3D model free to download?: Yes. KNOL Labs // Printable, Refillable Hanging Carbon Filter with Fan for Indoor Horticulture is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by knollabs.
Who made this model?: Designed by knollabs, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.