Quad Tone Air Hose Screamer - Air Hose Whistle

It works, it is loud, it is now in 4-tones at once!  Use at your own discretion.

Printed at 0.25mm layer with a 0.4mm nozzle.  Use PETG(preferred) or PLA.  Make sure you align the Z-seam along one of the valleys between the chambers.

See my single tone model here.