This InSinkErator 13620 is a throat guard kit that is installed in the disposer's opening for added safety while in use. It mounted permanently in the disposer to protect your hands from reaching the grind chamber. This throat guard cannot be removed as long as the disposer is attached through the sink. For proper installation, this kit with a gasket and mounting bolts fits a 6-5/8" flange opening. InSinkErator continues to provide plumbing products like this one for your convenience.
