Flanders Precisionaire MERV 11 Custom Size Filters (12 Pack)
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This filter is custom made to your exact size giving you a perfect fit. Please be sure to enter the exact size you need in the space provided. Pre Pleat 62RM11 MERV 11 pleated panel filter enables a significant upgrade in collection efficiency over existing MERV 8 products at the same resistance levels. A 25-30% average efficiency filter can be upgraded to 60-65% efficiency at roughly the same resistance levels.