Search Results for '13 x21'

• 

  16.375x21.5x1 AIRx DUST Air Filter, 6-Pack

  $12.49 / Filter

  

  133 review(s)

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  Average rating 4.7/5

  5 stars

  (103)

  4 stars

  (26)

  3 stars

  (2)

  2 stars

  (2)

  1 star

  (0)

  in stock
• 

  21x21.5x5 AIRx ALLERGY Trane BAYFTAH21M Replacement Air Filter - MERV 11, 2-Pack

  $45.95 / Filter

  

  24 review(s)

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  Average rating 4.6/5

  5 stars

  (21)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (2)

  in stock
• 

  13x21.5x1 AIRx ALLERGY Air Filter, 4-Pack

  $17.49 / Filter

  

  1 review(s)

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  Average rating 5.0/5

  5 stars

  (1)

  4 stars

  (0)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock
• 

  20x21x5 AIRx ALLERGY White Rodgers FR1600-100 Replacement Air Filter - MERV 11

  $58.49 / Filter

  

  22 review(s)

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  Average rating 5.0/5

  5 stars

  (21)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  1 Week to Ship
• 

  20x21x5 AIRx DUST White Rodgers FR1600-100 Replacement Air Filter - MERV 8

  $54.02 / Filter

  

  4 review(s)

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  Average rating 5.0/5

  5 stars

  (4)

  4 stars

  (0)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  1 Week to Ship
• 

  20x21x5 AIRx HEALTH White Rodgers FR1600-100 Replacement Air Filter - MERV 13

  $64.44 / Filter

  

  3 review(s)

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  Average rating 3.3/5

  5 stars

  (1)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (1)

  1 Week to Ship
• 

  21x21.5x5 AIRx DUST Trane BAYFTAH21M Replacement Air Filter - MERV 8, 4-Pack

  $39.95 / Filter

  

  24 review(s)

  ◆

   

  Average rating 4.6/5

  5 stars

  (21)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (2)

  in stock
• 

  21x21x1 AIRx DUST Air Filter - MERV 8

  $14.49 / Filter

  

  7 review(s)

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  Average rating 4.0/5

  5 stars

  (5)

  4 stars

  (0)

  3 stars

  (0)

  2 stars

  (1)

  1 star

  (1)

  6-8 Weeks to Ship
• 

  20x21x5 AIRx ALLERGY Replacement for Lennox X8790 Air Filter - MERV 11

  $67.41 / Filter

  

  3 review(s)

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  Average rating 5.0/5

  5 stars

  (3)

  4 stars

  (0)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  1 Week to Ship
• 

  13x21.5x1 AIRx ODOR Air Filter - CARBON

  $26.06 / Filter

  1 Week to Ship
• 

  19x21x1 AIRx DUST Air Filter - MERV 8

  $15.49 / Filter

  

  5 review(s)

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  Average rating 4.8/5

  5 stars

  (4)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  1 Week to Ship
• 

  13x21.5x1 AIRx DUST Air Filter, 6-Pack

  $11.49 / Filter

  

  56 review(s)

  ◆

   

  Average rating 4.9/5

  5 stars

  (51)

  4 stars

  (5)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock