Product review (5 stars): Cooktop Cartridge Saves the Day!
So happy to extend the life of my Jennair!  But beware of measurements shown in product description:  In actuality, this item is only about 19"x10"x1".  I took a chance because of a review that mentioned this and it fits perfectly! Very easy to install. Just ordered another one to replace the grill on the left side of the cooktop, which I have never liked or used.  I'm about to have 4 burners for the first time in 33 years!.  Feel like I've won the lottery by finding replacement options on Amazon!