Caleffi Z121000 24-Volt Z-One Normally Closed Valve Actuator without End Switch NC<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Two position spring return normally closed</li><li>Automatically shut-off or redirect hot or chilled water in hydroid and air conditioning systems</li><li>Without AUX Switch</li><li>With 18-Inch wire</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31ii1M7Xr1L.jpg" noproxy>