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Filtrete 20-in W x 90-in L x 1-in MERV 4 Media Cut To Fit Air Filter

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  • This roll of 1-in blue/white poly filter media is 100% synthetic material; the multi-density is designed for depth loading

  • The course white layer is designed to capture the larger more visible dust and particles

  • The blue layer prevents finer dust from passing through the media

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