Air Compressor to Garden Hose RV Winterization Adapter

Design preview. Rendered from the file, not a photo.

The maker says it fits: Standard 2-gallon portable air compressor with quick-connect fittings. See the proof

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What it does

Connects an air compressor to your RV water lines
Blows out water lines for safe winter storage
Saves the mess and cost of pink antifreeze
Brings simple winterization to any RV owner

Winterize your RV the clean way. This adapter joins a standard air compressor to a garden hose fitting, so you blow water out of the RV lines instead of filling them with pink antifreeze. Cleaner, cheaper, and less work in the spring.

Hook the adapter to your compressor on one side and to the RV city water inlet on the other. Run the compressor at a safe pressure (around 30 to 40 psi for most RVs) and run the water through each fixture until air comes out. Done. Lines are dry, and the RV is ready for cold weather.

Built for RV owners, weekend campers, and full-timers heading south for the season. The kind of small adapter that pays for itself in one fall season.

4.1k downloads in the maker community. That is interest in the design on the site it came from, not our sales.

What it fits

The maker says it fits: Standard 2-gallon portable air compressor with quick-connect fittings

That is the maker's word, not a fit we measured. Check the size below against your own.

Standard 2-gallon portable air compressor with quick-connect fittings (model 2-gallon)From the maker's own listing notes, checked 2026-08-13. See the original post

Brand names here only say what this part fits. We are not connected to those companies, and they did not make or check this part.

What you get

This design prints as one piece.
Nothing else to print or buy for this to work.

What it is made of

Designs like this print well in PLA. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.