General description Maintain a cleaner and healthier home environment with the 2Pack HRF-AP1 Universal Carbon Pre Filters. These filters deodorize the air and trap larger particles, providing better air quality for you to breathe. Each filter can be cut to create 1 to 8 pre-filters depending on the model, making them versatile for various applications. Technical specifications Filter Model: HRF-AP1 Replace Part No.: 38002 (Not Fit for Towers) Carbon Filter Size: 47 inches x 15.5 inches Material: Cotton Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with: 50000 Series, 17000 Series, 18150 Series, 40100 Series, 40200 Series, and HPA100, 200, 300 Series Consoles Includes: 2 packs of HRF-AP1 pre-filters and 1 free cleaning brush Usage Recommendation: Change the pre-filters regularly, usually every 2 or 3 months Can be cut to fit range hoods and furnace filters Other information Note: Light reflection and different displays may cause the color of the item to