The Trane FLR6464 Pre-Filter (17.19" x 26.07") is a dependable HVAC air filter designed to enhance indoor air quality and help maintain system efficiency. Sized to fit compatible Trane systems — 17.19 inches by 26.07 inches — this pre-filter captures dust, debris, and larger particles before they reach the main filter. Its sturdy construction extends the life of downstream filters whi... https://www.partshnc.com/2719x2607-prefilter