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Merv 11 1" Furnace Filter Merv 11 2" Furnace Filter
The Koch Multi-Pleat MERV 11 is a medium efficiency extended surface pleated panel filter, engineered to provide higher initial efficiencies and better overall performance than standard pleated filters. The Koch Multi-Pleat MERV 11 is a medium efficiency extended surface pleated panel filter, engineered to provide higher initial efficiencies and better overall performance than standard pleated filters.
Merv 11 4" Furnace Filter
The Koch Multi-Pleat MERV 11 is a medium efficiency extended surface pleated panel filter, engineered to provide higher initial efficiencies and better overall performance than standard pleated filters.