Search Results for 'furnace filters 18 20 1'

• 

  20x20x1 AIRx DUST Air Filter, 12-Pack

  $8.49 / Filter

  

  109 review(s)

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  Average rating 4.8/5

  5 stars

  (96)

  4 stars

  (9)

  3 stars

  (1)

  2 stars

  (0)

  1 star

  (3)

  in stock
• 

  20x25x5 AIRx ALLERGY ReservePro 4501 Replacement Air Filter - MERV 11

  $40.09 / Filter

  

  15 review(s)

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  Average rating 4.9/5

  5 stars

  (14)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock
• 

  20x25x2 AIRx ALLERGY Air Filter - MERV 11

  $15.49 / Filter

  

  13 review(s)

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  Average rating 5.0/5

  5 stars

  (13)

  4 stars

  (0)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock
• 

  20x20x4 AIRx DUST Air Filter - MERV 8 2-Pack

  $25.49 / Filter

  

  8 review(s)

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  Average rating 4.3/5

  5 stars

  (6)

  4 stars

  (0)

  3 stars

  (1)

  2 stars

  (0)

  1 star

  (1)

  in stock
• 

  20x20x2 AIRx DUST Air Filter - MERV 8

  $12.49 / Filter

  

  7 review(s)

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  Average rating 4.9/5

  5 stars

  (6)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock
• 

  20x20x4 AIRx ALLERGY Air Filter - MERV 11, 2-Pack

  $28.49 / Filter

  

  13 review(s)

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  Average rating 4.3/5

  5 stars

  (10)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (2)

  in stock
• 

  20x25x4 AIRx DUST Air Filter - MERV 8 2-Pack

  $27.49 / Filter

  

  12 review(s)

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  Average rating 4.5/5

  5 stars

  (10)

  4 stars

  (0)

  3 stars

  (1)

  2 stars

  (0)

  1 star

  (1)

  in stock
• 

  18x25x1 AIRx DUST Air Filter - MERV 8

  $9.49 / Filter

  

  1 review(s)

  ◆

   

  Average rating 5.0/5

  5 stars

  (1)

  4 stars

  (0)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock
• 

  20x25x5 AIRx ODOR ReservePro 4501 Replacement Air Filter - Carbon

  $47.90 / Filter

  in stock
• 

  20x20x2 AIRx ALLERGY Air Filter - MERV 11

  $14.49 / Filter

  

  12 review(s)

  ◆

   

  Average rating 4.8/5

  5 stars

  (11)

  4 stars

  (0)

  3 stars

  (1)

  2 stars

  (0)

  1 star

  (0)

  in stock
• 

  20x25x5 AIRx DUST ReservePro 4501 Replacement Air Filter - MERV 8

  $36.66 / Filter

  

  4 review(s)

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  Average rating 4.8/5

  5 stars

  (3)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock
• 

  20x25x2 AIRx DUST Air Filter - MERV 8

  $12.49 / Filter

  

  5 review(s)

  ◆

   

  Average rating 4.8/5

  5 stars

  (4)

  4 stars

  (1)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock