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Currency - All prices are in AUD

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Get premium quality 20x25x4 furnace filters made by CAMFIL. Compare Camfil filters:
MERV 8 8 11 13
LIFESPAN 4 months 6 months 5 months 5 months
COST PER FILTER $15.83 $22.83 $21.83 $33
PRICE 6-PACK $95 $137 $131 $198
 OVERVIEW  economical  best overall
 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. 
  • 20x25x4 furnace filter

    20x25x4 Furnace Filter Camfil AP-3. (6-pack) US$96.23 US$71.42

    MERV 8 yields high indoor air quality with an exceptional filter that rivals the brand name competition. GREAT VALUE: You pay only $15.83 each! Pay less, get more. Most affordable product of this size! HIGHLIGHTS MERV...

  • 20x25x4 Air Filter Merv 8

    20x25x4 Furnace Filter Camfil 30/30. (6-pack) US$131.57 US$103.00

    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 $22.83 per filter!...

  • 20x25x4 Furnace Filter Merv 11

    20x25x4 Furnace Filter Camfil AP-11. (6-pack) US$126.30 US$98.49

    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 $21.83 per furnace...

  • 20x25x4 Furnace Filter Merv 13

    20x25x4 Furnace Filter Camfil AP-13. (6-pack) US$181.18 US$148.86

    MERV 13: Highest Efficiency filtration. The BEST Canadian homeowners can buy! Better performance, superior results for a cleaner, safer home. And at just $33 per filter, you’re paying for superior dust and allergen...