4L Cereal Box Filament Lid – PTFE Pass‑Through

This is a modified replacement lid for common 4L cereal containers, designed to safely hold 1kg filament spools and integrate a PTFE tube pass‑through with quick‑fit connector.

The model is based on the original lid geometry of the container and has been carefully modified only where needed, adding a clean and precise hole for the filament outlet.
No permanent modification to the original lid is required – you can always reinstall the stock lid and reuse the container for its original purpose.

Key Features

Designed for PTFE tube quick connectors

Based on the original 4L cereal box lid

Perfect for DIY dry filament storage

Clean, minimal, and functional design

Ideal for PLA, PETG, ABS, TPU, Nylon

Why this model?

Most filament dry box solutions require drilling or permanently modifying the original lid.
This design allows you to:

• Convert a 4L cereal container into a filament box
• Keep the original lid intact
• Easily revert the container back to food or general storage use

Container Compatibility

Tested and designed for standard 4L cereal containers commonly sold on:

• Amazon
• TEMU