Product review (5 stars): Saved  us from losing our home in a mobile home fire!!!!!!!!
I had my doubts after seeing the ads, but installed one on either side of the range hood at my wife's request. I somehow managed to cause flames the width of a 21" skillet and as high as the range hood while cooking supper. I heard a pop, and the can activated and immediately put out the fire!! They say it takes 3 minutes for a fire to consume a mobile home, but the fire was out in seconds  with the Firestop and with minimum mess. I'm now a believer, and have ordered and installed a replacement.