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18x24x4

Get premium quality 18x24x4 furnace filters made by CAMFIL. Compare Camfil filters:

	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	$18.67	$26.83	$24.67	$31.17
PRICE 6-PACK	$112	$161	$148	$187
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.

18x24x4 Furnace Filter Camfil AP-3. (6-pack) ~~US$97.30~~ US$84.48

MERV 8 yields high indoor air quality with an exceptional filter that rivals the brand name competition. GREAT VALUE: You pay only $18.67 each! Pay less, get more. Most affordable product of this size! HIGHLIGHTS MERV 8...

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18x24x4 Furnace Filter Camfil 30/30. (6-pack) ~~US$139.55~~ US$121.44

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 $26.83 per filter!...

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18x24x4 Furnace Filter Camfil AP-11. (6-pack) ~~US$128.23~~ US$111.64

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 $24.67 per furnace...

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18x24x4 Furnace Filter Camfil AP-13. (6-pack) ~~US$162.17~~ US$141.05

MERV 13: Highest Efficiency filtration. The BEST Canadian homeowners can buy! Better performance, superior results for a cleaner, safer home. And at just $31.17 per filter, you’re paying for superior dust and allergen...

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