IVAC SB-NA - SWITCH BOXThe iVAC Dust Collector Switch Box is an inexpensive, simple to use automated dust controller that activates your shop vacuum automatically whenever the power tool to which its attached is turned on. All you need to do is remember to hook up the vacuum hose to your power tool. With this easy to use dust collector switch, youll be amazed at how much cleaner renovation work can be. Dust and debris is collected immediately, extraneous airborne dust is