After installing these HVAC filters, my heating system deteriorated so much that I was having trouble keeping my house warm. I called customer service and the technician said the system was working fine but the filters were bad. He said they were clean but too thick to let in enough air. He thought it was a manufacturing defect because the MERV 8 rated filters had to have good airflow. I used branded filters and the problem is solved. Revain's complete lack of control over the quality of his suppliers is once again striking!
NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
18 Review
NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 Review
NANPU 1 FRL Air Filter Regulator Lubricator Combo With 0-150 Psi Gauge, 5 Micron Brass Element, Poly Bowl & Semi-Auto Drain - Metal Bracket Included
20 Review
Filter under the sink Aquaphor Favorit ECO silver
20 Review