Product review (5 stars): Easy to install
We rent a house and have been disappointed in the state of the collar in our sink for months.  Recently we've noticed water and food splashing back at us when we ran the disposal and my roommate's cats would paw at the water they saw going by when the dishwasher would drain.  I just cut away what little was left of the existing collar and this slipped right into place.  We have an insinkerator disposal and this fit perfectly!  The disposal definitely sounds quieter as well and it keeps the kitty paws out of the drain.