Lennox Y6616 - 20" x 21" x 5" MERV 16

The PureAir™ system attacks all three classes of contaminants, providing a healthier home environment:
Particles: small breathable particles such as pollen, dust and pet dander
Bioaerosols and microorganisms: viruses, dust mites, bacteria, mold spores and fungi
Odors and chemical vapors: pet odors, cooking smells, cleaning supplies and paints

The annual maintenance kit for PCO3/PCO3S includes the following:
1 - Y6606: Healthy Climate® Carbon Clean 16 Filter
1 - Y6621: PCO cartridge
1 - X8794: UVA lamp