Rockruth 9×16.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 16.5 x .75″ – FK9x16.5x1A-M8-4

$29.50
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Rockruth 9×18.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 18.5 x .75″ – FK9x18.5x1A-M8-4

$30.25
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Rockruth 9x18x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 18 x .75″ – FK9x18x1A-M8-12

$31.95
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Rockruth 9×19.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 19.5 x .75″ – FK9x19.5x1A-M8-4

$30.35
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Rockruth 9x19x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 19 x .75″ – FK9x19x1A-M8-4

$30.35
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Rockruth 9x20x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 20 x .75″ – FK9x20x1A-M8-4

$30.35
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Rockruth 9×21.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 21.5 x .75″ – FK9x21.5x1A-M8 -4

$30.80
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Rockruth 9×23.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 23.5 x .75″ – FK9x23.5x1A-M8 -4

$43.65
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Rockruth 9×24.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 24.5 x .75″ – FK9x24.5x1A-M8-4

$31.30
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Rockruth 9×25.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 25.5 x .75″ – FK9x25.5x1A-M8-4

$32.75
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Rockruth 9x25x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 25 x .75″ – FK9x25x1A-M8-4

$33.95
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Rockruth 9x26x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 26 x .75″ – FK9x26x1A-M8-4

$44.25
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