18×20 DustLok 3-ply Panel Filter MERV 9 (Single)
Dustlok Tackifier. Zero Dirty Air By-Pass – Dirt Cannot Go Around or Between Filter. Makes Filter Changes Clean – Dirt Stays in the Filter! Mold Spores. Household Dust.
Dustlok Tackifier. Zero Dirty Air By-Pass – Dirt Cannot Go Around or Between Filter. Makes Filter Changes Clean – Dirt Stays in the Filter! Mold Spores. Household Dust.