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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 $18.50 $26.67 $25.50 $38.33
PRICE 6-PACK $111 $160 $153 $230
 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$98.01 US$84.99

    MERV 8 yields high indoor air quality with an exceptional filter that rivals the brand name competition. GREAT VALUE: You pay only $18.50 each! Pay less, get more. Most affordable product of this size! HIGHLIGHTS MERV 8...

  • 20x25x4 Air Filter Merv 8

    20x25x4 Furnace Filter Camfil 30/30. (6-pack) US$140.89 US$122.51

    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 $26.67 per filter!...

  • 20x25x4 Furnace Filter Merv 11

    20x25x4 Furnace Filter Camfil AP-11. (6-pack) US$134.76 US$117.15

    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 $25.50 per furnace...

  • 20x25x4 Furnace Filter Merv 13

    20x25x4 Furnace Filter Camfil AP-13. (6-pack) US$202.91 US$176.11

    MERV 13: Highest Efficiency filtration. The BEST Canadian homeowners can buy! Better performance, superior results for a cleaner, safer home. And at just $38.33 per filter, you’re paying for superior dust and allergen...