Product review (5 stars): New ones are great and much easier to deal with since the plastic ...
These fit our Broan hood perfectly.  The old ones were nasty -- we didn't realize we needed to change them when we got the house and after 2 years they were a mess, and mostly had holes in them from some fires in the past.  New ones are great and much easier to deal with since the plastic pull tabs to get them out are on there.