Product review (5 stars): Great price for an OEM part!
The cost of this Humidifier filter is 1/3 of the price offered by our HVAC system installer and even beats the popular box store offerings. It's a genuine Aprilaire OEM part and the hassle-free, no mess filter change took less than 5 minutes. Packaging also includes clear directions for easy installation. This is a definite add-on to our Amazon Prime wish list.