20x24x4

20x24x4 furnace filter. Premium quality made by CAMFIL.
  CAMFIL AP-3 CAMFIL 30/30 CAMFIL AP-11 CAMFIL AP-13
MERV 8 8 11 13
LIFESPAN 4 months 6 months 5 months 5 months
COST PER FILTER $20.83
$30
$30.33
$41
PRICE 6-PACK $125
$180 $182 $246
 OVERVIEW  economical  best overall
value
 remove allergens
at low cost
 superior dust and
allergen removal
The higher the MERV rating on a filter, the fewer dust particles and other contaminants can pass through it. 

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  • 20x24x4 Furnace Filter Camfil AP-3. (6-pack)

    Camfil

    20x24x4 Furnace Filter Camfil AP-3. (6-pack)

    MERV 8 yields high indoor air quality with an exceptional filter that rivals the brand name competition. GREAT VALUE: You pay only $20.83 each! Pay less, get more. Most affordable product of this size! HIGHLIGHTS MERV 8 Lifespan: 4 months Exact size: 19...

    Was: $128.00
    Now: $125.00
    Add to Cart
  • 20x24x4 Furnace Filter Merv 8

    Camfil

    20x24x4 Furnace Filter Camfil 30/30. (6-pack)

    MERV 8: Best selling -- 5 Star Rated with Innovative Technology. Ultimate filter for Canadian homeowners. Offers the best value for price, lifespan, and air quality with brand name reliability. Pay only $30 per filter! This second-generation Merv 8 has...

    $180.00
    Add to Cart
  • 20x24x4 Air Filter Merv 11

    Camfil

    20x24x4 Furnace Filter Camfil AP-11. (6-pack)

    MERV 11: High Efficiency -- State of the art filtration capabilities remove allergens, the perfect choice for Canadian homeowners to elevate air quality. Brand name reliability at a low cost: pay only $30.33 per furnace filter! Most popular option for...

    $182.00
    Add to Cart
  • 20x24x4 Air Filter Merv 13

    Camfil

    20x24x4 Furnace Filter Camfil AP-13. (6-pack)

    MERV 13: Highest Efficiency filtration. The BEST Canadian homeowners can buy! Better performance, superior results for a cleaner, safer home. And at just $41 per filter, you’re paying for superior dust and allergen removal without the name brand...

    $246.00
    Add to Cart
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