Search Results for '18 x20x1 furnace filter'

• 

  18x20x1 AIRx ALLERGY Air Filter, 4-Pack

  $16.49 / Filter

  

  6 review(s)

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  Average rating 5.0/5

  5 stars

  (6)

  4 stars

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  3 stars

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  1 star

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  in stock
• 

  18x20x1 AIRx DUST Air Filter, 4-Pack

  $13.49 / Filter

  

  6 review(s)

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  Average rating 5.0/5

  5 stars

  (6)

  4 stars

  (0)

  3 stars

  (0)

  2 stars

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  1 star

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  in stock
• 

  18x20x1 AIRx HEALTH 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
• 

  18x20x1 AIRx ALLERGY Air Filter

  $21.49 / Filter

  in stock
• 

  18x20x1 AIRx HEALTH Air Filter

  $23.49 / Filter

  

  2 review(s)

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  Average rating 5.0/5

  5 stars

  (2)

  4 stars

  (0)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (0)

  in stock
• 

  18x20x1 AIRx DUST Air Filter

  $18.49 / 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
• 

  18" X 20" X 1" Lifetime Permanent Washable Filter

  $56.95 / Filter

  

  8 review(s)

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  Average rating 4.3/5

  5 stars

  (5)

  4 stars

  (2)

  3 stars

  (0)

  2 stars

  (0)

  1 star

  (1)

  in stock
• 

  Dynamic Equivalent Air Cleaner Refills - 18" x 20" x 1" - 3 Pack

  $21.36 / Refill Pad

  1 Week to Ship
• 

  18" X 20" X 1" Lifetime Permanent Washable Filter, 2-Pack

  $55.48 / Filter

  in stock