Pair of 2 Tork P47 - Trippers - 1 on and 1 off - for 1100， 7000， and 1800 Series<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>tork nsi P47 replacement trippers for 1100 series (except fm models) for 7000 series.</li><li>for 1800 series (24 hour only)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41QfwtcBlSL.jpg" noproxy>