21x27x1 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
Trane BAYFTFR21P4A Trane
Perfect Fit BAYFTFR21P4A
  • $79.99
  • 1 Filters
  • ($79.99 / filters)
MERV 8
Learn more
3 Months $319.96
Best Value!

$79.99
1 Filters

($79.99 / filter)
MERV Rating - Contaminant Removal Guide
MERV Rating   8 11 12 13
Lint & Dust  
Dust Mite Debris  
Pollen  
Mold Spores  
Pet Dander  
Auto Emissions  
Smoke  
Tobacco  
Bacteria  
Note: equals efficient removal of contaminant by filter.