“When I searched for a 4-inch thick filter for my heat pump air handler, I found that most would not be an exact fit replacement, and the prices were way too high. I was fortunate to find this one from Voomi Supply. The price was great and it fits perfectly. Although I had to pay the full shipping price, the total was still much cheaper than the others, which would also have left a half-inch gap in the airflow. What good is a filter that doesn't fit?”
