Honeywell Replacement 9 x 11 x 1 inches. MERV 11 filter. Case of 12 filters. Also available in carbon pleats. This is an after-market, custom built, pleated replacement filter. Replaces Honeywell Part #50049537-005. Nominal measurement of 9 x 11 x 1 inches. Actual measurement is 8.875 x 11.375 x .75 inches.
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