Product review (5 stars): Use in our 32 gal, 18-in KitchenAid Trash Compactor.  Heavy Duty  Recommend
We buy a box each year; lasts all year.  Use only on our 32 gal, 18-in wide KitchenAid trash compactor.  Highly Recommend.  Heavy Duty; we save just for the compactor and a box lasts all year.  Empty usually 1x a week for trash pickup. A few extra for holidays and seasons like Christmas when empty more often.  Worth every penny.  Just add to the yearly calendar to order.
Nothing sold for this size compactor locally, but ordering yearly from Amazon is a dream.  Easy and they fit just right.