With a rating of MERV 13, these air filters by Tier1 are perhaps the surest way to get the cleanest, highest quality indoor air in your home! Made in the USA with eco-conscious materials, these filters compare in size to the 255649-102 and 259112-102 air filters by Trion/Air Bear. Throughout their six-month lifespan, these filters will capture up to 90% of all particles, even those smaller than one micron, while also helping to improve your air flow. A great way to keep your HVAC system running smoothly while ensuring you get the fresh indoor air you deserve! Order this 2-pack of Tier1 air filters, comparable replacements for the 255649-102 and 259112-102 models from Trion/Air Bear, online from us today.