Protec Demineralization Cartridge PDC51V1<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> Cartridge </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Removes minerals and other impurities from water </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Eliminates "white dust" that can settle on furniture </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Effective for one to two months under average conditions </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Use with Vicks® Ultrasonic Humidifier V5100 </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41lJQJqZ-tL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51xtQwDl2eL.jpg" noproxy>