Filter King 21.5x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21.5 x 4 x .75" - FK21.5x4x1A-M8 - 4

Filter King 21.5x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21.5 x 4 x .75" - FK21.5x4x1A-M8 - 4

$48.25
$48.25 $54.25
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Filter King 21.5x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21.5 x 4 x .75" - FK21.5x4x1A-M8 - 4
  • Filter King 21.5x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21.5 x 4 x .75" - FK21.5x4x1A-M8 - 4
  • Filter King 21.5x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21.5 x 4 x .75" - FK21.5x4x1A-M8 - 4
Filter King 21.5x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21.5 x 4 x .75" - FK21.5x4x1A-M8 - 4

Filter King 21.5x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21.5 x 4 x .75" - FK21.5x4x1A-M8 - 4

$48.25
$48.25 $54.25
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  • FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 21.5" x 4" x 1" - Actual Size: 21.5" x 4" x .75"
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  • MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters
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  • CAPTURE MORE: Protect your home! The pleated design captures more particles and extends lifetime of the filter. Merv Filters trap airborne particles without impacting air flow. Feel the difference in 48 hours.
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  • FAST & EASY INSTALLATION: Open, Slide and Close! A simple yet effective replacement air filter for your home.
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