Aprilaire 10 Water Panel， Fits Humidifiers 500， 500A， 500M， 550， 550A， 558， 110 and 220 (Single)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Genuine Aprilaire Water Panel Replacement </span></li><li><span class="a-list-item"> Made in Wisconsin， USA </span></li><li><span class="a-list-item"> Fits Aprilaire Humidifier Models: 110， 220， 500， 550， 558 </span></li><li><span class="a-list-item"> Optimizes humidity levels in your home. </span></li><li><span class="a-list-item"> Helps reduce susceptibility to colds， the flu， and other respiratory ailments. </span></li><li><span class="a-list-item"> Genuine Aprilaire Water Panel Replacement </span></li><li><span class="a-list-item"> Made in Wisconsin， USA </span></li></ul><!--   Loading EDP related metadata  --><div aria-live="polite" class="a-row a-expander-container a-expander-inline-container"><div aria-expanded="false" class="a-expander-content a-expander-extend-content" style="display: none;"><ul class="a-unordered-list a-vertical a-spacing-none"><li><span class="a-list-item">Fits Aprilaire Humidifier Models: 110， 220， 500， 550， 558</span></li><li><span class="a-list-item">Optimizes humidity levels in your home.</span></li><li><span class="a-list-item">Helps reduce susceptibility to colds， the flu， and other respiratory ailments.</span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51dP2euhseL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51q4LI8BPzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51hx5sWNWcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51%2B00P2n9zL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61GTmRPQp4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51uPlffOl6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/519V%2BgrfnqL.jpg" noproxy></div></div>