AP-4217 - Aprilaire OEM Replacement Humidifier Water Pad Scale Control Insert<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>This is a Brand New OEM Humidifier Water Pad Scale Control Insert</li><li>Top Quality OEM Replacement Part!</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31EO9yRcjRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/01yvBcMrzjL.jpg" noproxy>