Review on Washable Furnace Filter 14X25X1 20 by Michael Jennings

I've had this filter for a month and had an ah-ha moment when I received a quote for a new air conditioner as mine wasn't cooling my house to my set temperature. Then it dawned on me that I had changed the filter and found that it was restricting airflow. Live in Florida and the AC works most of the year. The air conditioner is only 7 years old. Never had problems with disposable filters. We went and bought disposable paper filters and the airflow improved. What now with this expensive filter? Is a return possible?