Quality Flow 4” Compact High Efficiency filters are designed to replace 12” deep pleated filters, 4 and 6 panel “V” cell filters, and all 4” high efficiency filters. Quality Flows offer lower cost, higher performance and convenient handling. Quality Flow’s rugged media and frame construction stand up under conditions where other filters fail. Quality Flow’s low airflow resistance and high dust holding capacity offer significant energy savings. Quality Flow filters are offered in header or box style in MERV 11, 13, 14 and Carbon.
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