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PrecisionAire - Panel Air Filter: 22 x 22 x 1″, MERV 4, 20% Efficiency - 37939212 - MSC Industrial Supply
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Filtrete 17.5-in W x 22-in L x 1-in MERV 11 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter (2-Pack) in the Air Filters department at Lowes.com
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Aerostar 20x22 1/4x1 MERV 8, Pleated Air Filter, 20 x 22 1/4 x 1, Box of 6, Made in the USA - Walmart.com
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Koch Air Filter 20 x 22 x 1 MERV 8 Pleated Air Filter 12 Pack - Hepa Filter Sales - HepaFilterSales.com -- We Deliver Breathing Easier
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PRO-SOURCE - Pleated Air Filter: 20 x 22-1/4 x 1″, MERV 8, 35% Efficiency, Wire-Backed Pleated - 00027680 - MSC Industrial Supply
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Filtrete 20-in W x 22-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com
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