The foambeak is a canned foam insulation nozzle that attaches to your off-the-shelf can of gap and crack foam. This nozzle will allow you to apply foam (from the can) to any surface, including vertical and overhead surfaces. You can expect to get about 3.5 sqft of coverage from the average 16oz can of foam. The foambeak works great when you want to add more foam insulation to your hot tub, Jacuzzi or spa. We have used these to insulate the back-side of a bathtub before installation (takes approximately 4-5 cans to cover the back-side of an average size bathtub). Use the foambeak to insulate just about anywhere you wish. Have a cold attic access panel? Or how about that drum that you use at parties to keep a keg cold? Remodeling a kitchen? foambeak the back side of the sink, this will reduce the noise created by the dishes, and it will also keep the water hotter for much longer while they soak. You can foambeak the door on an older dishwasher to reduce noise. The uses are endless! Use the foambeak for all your small insulation jobs: Bathtubs and hot tubs Hot water tanks Back-side of your attic door/access panel A barrel to keep a keg of beer cold during parties Spots where a door or a window was removed Kitchen sink to reduce noise and hot water soak times Older dishwasher door to reduce noise Hunting blind (this adds sound deadening too) Build custom fender flares on your car or truck **We are in no way affiliated with the makers of the canned foam, nor do we sell or distribute the canned foam.