Product review (5 stars): Fits my 1980's Kitchen-Aid Hobart compactor
My compactor is a 1983 Kitchen Aid by Hobart model and is 18 inches across.  The box has the buttons on the side.  I have been using plastic bags found at the grocery store, but the bags continue to fall into the box when the compactor is used.  Purchased these, they fit, have almost filled the entire bag (with compacting it daily) and the bag has not torn or dropped off of the sides into the box.  So far, so good.  Very nice to not have to adjust the bag every time.

After reading other posts, I learned that you can simply poke holes in the other bags (duh) and those would work in a bind. So in the event these run out or I can't find them anymore...will do that..poke holes in other bags.  But these work great.

As far as thickness goes, I only have one other brand (Kroger store brand) to compare and the thickness is comparable.  If these tear, I will update my review.

The size is adequate for my compactor, which is a little larger than the current ones on the market which are typically 15"... a few brands are 18, so just to clarify that this does fit my 18" Kitchen Aid/Hobart nicely.