Actual size is 15.75 x 26.13 x 3. Accumulair brand: 16x26x3 Lennox PCO-12U style whole house filters, specifically constructed to replace the OEM Lennox PCO-12U air filters. Completely constructed with no assembly or combs needed. MERV graded to ASHRAE standards assuring filtration as good or better than the name brand Lennox PCO-12U filter. Notice: Sample filter image as displayed is not to scale and is there to show style only. Name brands and Lennox PCO-12U identifier used for filter replacement identification only.
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