![18x24x4 MERV 10 AC & Furnace 4" Depth Air Filters. Box of 4. Actual Size: 17-1/2 x 23-1/2 x 3-3/4 - Amazon.com 18x24x4 MERV 10 AC & Furnace 4" Depth Air Filters. Box of 4. Actual Size: 17-1/2 x 23-1/2 x 3-3/4 - Amazon.com](https://m.media-amazon.com/images/I/41+FK3pB6UL._AC_.jpg)
18x24x4 MERV 10 AC & Furnace 4" Depth Air Filters. Box of 4. Actual Size: 17-1/2 x 23-1/2 x 3-3/4 - Amazon.com
![18x24x4 Air Filter, TRIGHTFILTERS Lightweight Durable MERV 8 Pleated Home HVAC AC Furnace Filters, Compact Air Conditioner Filters Replacement 2 Pack - Amazon.com 18x24x4 Air Filter, TRIGHTFILTERS Lightweight Durable MERV 8 Pleated Home HVAC AC Furnace Filters, Compact Air Conditioner Filters Replacement 2 Pack - Amazon.com](https://m.media-amazon.com/images/I/71vf3N+VLuL._AC_UF894,1000_QL80_.jpg)
18x24x4 Air Filter, TRIGHTFILTERS Lightweight Durable MERV 8 Pleated Home HVAC AC Furnace Filters, Compact Air Conditioner Filters Replacement 2 Pack - Amazon.com
![Filterbuy 18x24x4 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.38 x 23.38 x 3.63 Inches) - Replacement Furnace Filters - Amazon.com Filterbuy 18x24x4 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.38 x 23.38 x 3.63 Inches) - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/41iB6RXjLwL._AC_.jpg)