Simple plug to go into any PC4 pneumatic fitting to block air flow. These are mainly used for plugging the fittings on my cereal container dry boxes while they are not in use so they don't let moisture in.

Nice snug fit towards the end of pushing it in but still easy to pull out with your fingers.

*UPDATE* 11-26-2023 7:20PM ----- Updated profiles to 102% scale. Please reprint if you've printed or downloaded before then. Thank you

It is possible there is slight variations in sizes between PC4 fittings from different manufacturers. If this fitting is too snug or too loose, scale it up or down accordingly. Please let me know if you run into this and I will upload an additional profile to suit your needs.