Furnace filter whistle - $5

condition: new

more ads by this seller

QR Code Link to This Post

- Reusable whistle
- When the filter begins to get clogged it will start to make a whistling sound
- Helps keep filter clean and reduce cost of energy
- https://www.youtube.com/watch?v=Ja5KKUiJyuA&ab_channel=AMConservationGroup

post id: 7985440401

posted: 2026-10-17 19:35

♥ best of ^[?]

reading

writing

saving

searching

refresh the page.

Furnace filter whistle - household items - by owner - craigslist

- Reusable whistle - When the filter begins to get clogged it will start to make a whistling sound - Helps keep filter clean and reduce cost of energy -...