Product review (5 stars): Great price and vendor
I bought these 18" Kitchen Aid trash compactor bags 4 packs at a time, as the shipping cost was the same, whether I bought 1 or 4.  These bags are hard to find for my older appliance.  At the store near where I live, they don't always have them in stock, and they are a lot more money for each package of 15.

They hold up well, and I change them once a week on trash day.  I have never had a problem with them, and this vendor shipped them quickly and well packaged.