Actual Dimensions: 16.25 x 21 x 5. Brand: Accumulair. 16x21x5 Electro-Air FR1000 style whole house filters, specifically engineered to replace name brand Electro-Air FR1000 filters. Fully constructed - no assembly or combs needed. MERV graded to ASHRAE grades assuring particle filtration to the level of the original brand Electro-Air FR1000 filters. Photo: Sample air filter image as shown is not to scale and is displayed for construction purposes only. Name brands and Electro-Air FR1000 P/N are shown for air filter replacement identification.
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