InSinkErator’s SinkTop Switch is for homeowners who need to install a garbage disposer but lack a wall switch. It installs quickly and easily to any sink or countertop into a pre-drilled hole. The UL-approved, flush-with-the-countertop switch is ideal for island installations. It works with any disposer and is available in several finishes to match most décors. The easy-to-use push button switch acts as a syringe, pushing air through a hose that controls the power module and activates the switch inside.