Primo 5 gal. Water Bottle Cap Plug 3D printable model by GreenEllipsis

Primo 5 gal. Water Bottle Cap Plug

Source: Thingiverse by GreenEllipsis

The Primo 5 gal. Water Bottle Cap Plug is a free printable 3D model from Thingiverse by GreenEllipsis. If you refill your 5-gallon water bottles, at some point the sticker covering the hole in the cap will fall off. You can download the STL file from the original listing below and print it at home.

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30 saves Source: Thingiverse Updated 2026-03-23

Tags: Primo, 5, gal., Water, Bottle, Cap, Plug

About this model

If you refill your 5-gallon water bottles, at some point the sticker covering the hole in the cap will fall off. What to do? These plugs fit snugly into the hole in a Primo 5-gallon water bottle cap. The goal was for them to be splash-resistant, hence the scallops and ribs. This worked better than planned as testing showed them to be water-tight! The original Solidworks model is parametric to make it easy to adapt to different brands. Contact me about making some for you!

Frequently asked questions

Is this 3D model free to download?
Yes. Primo 5 gal. Water Bottle Cap Plug is free to download from Thingiverse. Click the "Download free STL" button 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 GreenEllipsis.
Who made this model?
Designed by GreenEllipsis, 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.

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