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Product Description
20" x 18" x 1", Two Sided, Metal Fiberglass, Standard Grille Filter, Merv 4, For Return Air Grille, Filtering Medium Is Continuous Filament Spun Glass, Frame Is Made With 1 Continuous Piece Of Chipboard To Guard Against Corner Separation, For Peak Equipment Protection & Energy Efficiency, These Filters Should Be Changed Monthly In Periods Of High Use. vendor ID: 28076 Price/Unit: 3.99EA model: 10355.012018
