Universal Compatibility Direct replacement for Lennox X6672, HCC16-28, HCF16-16 & HCF16-10 filters Also fits Honeywell, Carrier & Trion Air Bear systems using 16x25x5 filters (verify cabinet clearance for 15.8 x 24.8 x 4.3 in actual size). Premium MERV 16 Performance Traps 98% of airborne particles as small as 0.3 microns (and 90% above 0.01 microns) with our coconut-activated carbon fiber matrix providing advanced filtration for improved home air quality. Easy Installation This 16x25x5 air filter installs quickly in 3 simple steps: 1) Unpack, 2) Slide into slot, 3) Close compartment door no tools required. Superior Particle Filtration Our 16x25x5 furnace filter's multi-layered media outperforms standard fiberglass filters, trapping microscopic particles like dust for cleaner indoor air. 1-Year Lifespan & Easy Maintenance Provides up to 12 months of use (replace every 6-12 months as needed) with hassle-free, tool-free replacement simply slide out the old filter and insert the new one."