4mm Blanking Plugs

thingiverse

A drybox requires a plug to keep it airtight when using PTFE tube inserts. I recently needed one for this purpose. The original design resembles a standard blanking plug, which has served me well in light use over four months without any issues. The alternative version features a larger cap, giving it an attractive appearance. However, this design makes it more difficult to compress the release ring and can prevent it from being compressed when fully inserted.