Tower Manufacturing 30396500-08 Heavy Duty Commercial Grade 20 AMP Manual-Reset Inline User Attachable GFCI， SJTW / STW Cord Guage Acceptance 12/3， Black<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>GFCI attachment with manual reset to protect users from ground faults and open neutral connections</li><li>Plug fits any power tool or machinery cord to reduce the risk of shock</li><li>Compatible with 15 and 20 amp U-ground 2- or 3-wire outlets and plugs</li><li>Impact-resistant case for durability and safety</li><li>UL and CUL approved for indoor and outdoor use</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31NSZ6i0yPL.jpg" noproxy>