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Nordic Pure 18x30x1 (17 3/4 x 29 3/4 x 3/4) Pure Carbon Pleated Odor Reduction Furnace Air Filters 3 Pack - Amazon.com
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HDX 18 in. x 30 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011830 - The Home Depot
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Filtrete 18-in W x 30-in L x 1-in MERV 13 1900 MPR Premium Allergen, Bacteria and Virus Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
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Filtrete 18-in W x 30-in L x 1-in MERV 11 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
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Filtrete 18-in W x 30-in L x 1-in MERV 5 Basic Pleated Air Filter (3-Pack) in the Air Filters department at Lowes.com
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