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Filter King 18×4.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 4.5 x .75″

Filter King 18×4.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 4.5 x .75″

Vendor:
Filter King

Regular price $35.85 USD

Regular price Sale price $35.85 USD
Unit price per
Filter King 18×40.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 40.5 x .75″ – FK18x40.5x1A-M8 -4

Filter King 18×40.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 40.5 x .75″ – FK18x40.5x1A-M8 -4

Vendor:
Filter King

Regular price $134.00 USD

Regular price Sale price $134.00 USD
Unit price per
Filter King 18×41.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 41.5 x .75″

Filter King 18×41.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 41.5 x .75″

Vendor:
Filter King

Regular price $121.95 USD

Regular price Sale price $121.95 USD
Unit price per
Filter King 18×42.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 42.5 x .75″

Filter King 18×42.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 42.5 x .75″

Vendor:
Filter King

Regular price $134.45 USD

Regular price Sale price $134.45 USD
Unit price per
Filter King 18×43.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 43.5 x .75″ – FK18x43.5x1A-M8 -4

Filter King 18×43.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 43.5 x .75″ – FK18x43.5x1A-M8 -4

Vendor:
Filter King

Regular price $131.95 USD

Regular price Sale price $131.95 USD
Unit price per
Filter King 18×44.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 44.5 x .75″ – FK18x44.5x1A-M8 -4

Filter King 18×44.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 44.5 x .75″ – FK18x44.5x1A-M8 -4

Vendor:
Filter King

Regular price $134.45 USD

Regular price Sale price $134.45 USD
Unit price per
Filter King 18×45.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 45.5 x .75″

Filter King 18×45.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 45.5 x .75″

Vendor:
Filter King

Regular price $134.45 USD

Regular price Sale price $134.45 USD
Unit price per
Filter King 18×47.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 47.5 x .75″ – FK18x47.5x1A-M8 -4

Filter King 18×47.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 47.5 x .75″ – FK18x47.5x1A-M8 -4

Vendor:
Filter King

Regular price $125.26 USD

Regular price Sale price $125.26 USD
Unit price per
Filter King 18×48.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 48.5 x .75″

Filter King 18×48.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 48.5 x .75″

Vendor:
Filter King

Regular price $0.00 USD

Regular price Sale price $0.00 USD
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Filter King 18×5.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 5.5 x .75″

Filter King 18×5.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 5.5 x .75″

Vendor:
Filter King

Regular price $48.35 USD

Regular price Sale price $48.35 USD
Unit price per
Filter King 18×50.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 50.5 x .75″

Filter King 18×50.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 50.5 x .75″

Vendor:
Filter King

Regular price $128.20 USD

Regular price Sale price $128.20 USD
Unit price per
Filter King 18×52.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 52.5 x .75″

Filter King 18×52.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 52.5 x .75″

Vendor:
Filter King

Regular price $139.80 USD

Regular price Sale price $139.80 USD
Unit price per
Filter King 18×54.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 54.5 x .75″

Filter King 18×54.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 54.5 x .75″

Vendor:
Filter King

Regular price $141.15 USD

Regular price Sale price $141.15 USD
Unit price per
Filter King 18×55.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 55.5 x .75″

Filter King 18×55.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 55.5 x .75″

Vendor:
Filter King

Regular price $141.15 USD

Regular price Sale price $141.15 USD
Unit price per
Filter King 18×57.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 57.5 x .75″ – FK18x57.5x1A-M8 -4

Filter King 18×57.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 57.5 x .75″ – FK18x57.5x1A-M8 -4

Vendor:
Filter King

Regular price $128.65 USD

Regular price Sale price $128.65 USD
Unit price per
Filter King 18×6.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 6.5 x .75″ – FK18x6.5x1A-M8 -4

Filter King 18×6.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 6.5 x .75″ – FK18x6.5x1A-M8 -4

Vendor:
Filter King

Regular price $41.95 USD

Regular price Sale price $41.95 USD
Unit price per
Filter King 18×60.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 60.5 x .75″ – FK18x60.5x1A-M8 -4

Filter King 18×60.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 60.5 x .75″ – FK18x60.5x1A-M8 -4

Vendor:
WholesaleHVACDirect

Regular price $133.20 USD

Regular price Sale price $133.20 USD
Unit price per
Filter King 18×61.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 61.5 x .75″

Filter King 18×61.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 61.5 x .75″

Vendor:
Filter King

Regular price $133.20 USD

Regular price Sale price $133.20 USD
Unit price per
Filter King 18×63.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 63.5 x .75″

Filter King 18×63.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 63.5 x .75″

Vendor:
Filter King

Regular price $133.20 USD

Regular price Sale price $133.20 USD
Unit price per
Filter King 18×64.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 64.5 x .75″

Filter King 18×64.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 64.5 x .75″

Vendor:
Filter King

Regular price $145.70 USD

Regular price Sale price $145.70 USD
Unit price per
Filter King 18×66.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 66.5 x .75″

Filter King 18×66.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 66.5 x .75″

Vendor:
Filter King

Regular price $133.20 USD

Regular price Sale price $133.20 USD
Unit price per
Filter King 18×8.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 8.5 x .75″ – FK18x8.5x1A-M8 -4

Filter King 18×8.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 8.5 x .75″ – FK18x8.5x1A-M8 -4

Vendor:
Filter King

Regular price $41.95 USD

Regular price Sale price $41.95 USD
Unit price per
Filter King 18×9.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 9.5 x .75″ – FK18x9.5x1A-M8 -4

Filter King 18×9.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 9.5 x .75″ – FK18x9.5x1A-M8 -4

Vendor:
Filter King

Regular price $54.45 USD

Regular price Sale price $54.45 USD
Unit price per
Filter King 19.25x21.25x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.25 x 21.25 x .75"

Filter King 19.25x21.25x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.25 x 21.25 x .75"

Vendor:
Filter King

Regular price $54.45 USD

Regular price Sale price $54.45 USD
Unit price per