Product Dimensions Nominal Size: 16" x 25" x 5" Actual Size: 15.6"×24.6"×5.1" Filtration Efficiency & Standard MERV Rating: 16 Filtration Efficiency: Generally claims over 95% efficiency for particles as small as 0.3 microns; some products claim up to 99% efficiency for even smaller particles (e.g., 0.1 microns). Core Material & Technology Primary Filter Media: Carbon-coated fiber Technical Feature: Utilizes Carbon-Clean technology, combining mechanical filtration and adsorption. Compatibility Primary Compatible Brands & Models: Lennox: X6672, HCC16-28, HCF16-16, HCF16-10 hone-ywell: F25A1043, F25F1042, F35F1008, F100F1012, F150E1026, F200E1029, etc. Carrier: EZXCAB016, MACA016, MPKA016, FILCAB016, etc. Trion Air Bear: Supreme 1400, 455602-119, etc. Applicable Devices: Home Furnaces, Air Conditioners, HVAC Systems, Air Cleaners/Purifiers. Packaging & Lifespan Common Package Quantity: 2-Pack Recommended Maximum Service Life: Up to 12 months (1 year) Practical Replacement Interval Advice: Replacement recommended every 6-12 months based on specific household environment and usage conditions. Other Parameters Product Weight: Single filter weight typically ranges from approximately 2.3 lbs to 4.8 lbs (varies by brand and specific construction). Product Condition/Grade: New.