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Filter King 28x34x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 28 x 34 x .75" - FK28x34x1A-M8 -4

Filter King 28x34x1 Air Filter | 4-PACK | MERV 8 HVAC Pleate

USD 78.95
Filter King 20x30x2 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 29.5 x 1.75" - FKFB20X30X2-12

Filter King 20x30x2 Air Filter | 12-PACK | MERV 8 HVAC Pleat

USD 88.6
Filter King 9x11x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 11 x .75" - FK9x11x1A-M8-12

Filter King 9x11x1 Air Filter | 12-PACK | MERV 8 HVAC Pleate

USD 48.55
Filter King 8x37.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 8 x 37.5 x .75" - FK8x37.5x1A-M8-4

Filter King 8x37.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleat

USD 43.9
Filter King 7x23.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7 x 23.5 x .75) - FK7x23.5x1A-M8-4

Filter King 7x23.5x1 Air Filter (MERV 8) (4-Pack) Dust & All

USD 40.85
Filter King 29x23x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 29 x 23 x .75" - FK29x23x1A-M8-4

Filter King 29x23x1 Air Filter | 4-PACK | MERV 8 HVAC Pleate

USD 76.35
Filter King 25x12.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 25 x 12.5 x .75"

Filter King 25x12.5x1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 56.45
Filter King 24x17.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 24 x 17.5 x .75" - FK24x17.5x1A-M8 -4

Filter King 24x17.5x1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 44.85
Filter King 20.5x20.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 20.5 x 20.5 x .75" - FK20.5x20.5x1A-M8 -4

Filter King 20.5x20.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pl

USD 31.25
Filter King 19x31x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19 x 31 x .75" - FK19x31x1A-M8 -4

Filter King 19x31x1 Air Filter | 4-PACK | MERV 8 HVAC Pleate

USD 76.5
Filter King 19.5x16x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 16 x .75"

Filter King 19.5x16x1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 43.2
Filter King 18x15x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 18 x 15 x .75" - FK18x15x1A-M8 -4

Filter King 18x15x1 Air Filter | 4-PACK | MERV 8 HVAC Pleate

USD 65.6
Filter King 17.5x29.5x1 Air Filter (MERV 8) (6-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 17.5 x 29.5 x .75) - FK17.5x29.5x1A-M8-6

Filter King 17.5x29.5x1 Air Filter (MERV 8) (6-Pack) Dust &

USD 44.88
Filter King 13x15x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 13 x 15 x .75) - FK13x15x1A-M8-4

Filter King 13x15x1 Air Filter (MERV 8) (4-Pack) Dust & Alle

USD 49.2
Filter King 13x11x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 13 x 11 x .75" - FK13x11x1A-M8-12

Filter King 13x11x1 Air Filter | 4-PACK | MERV 8 HVAC Pleate

USD 47.8
Filter King 11x25x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 11 x 25 x .75) - FK11x25x1A-M8-4

Filter King 11x25x1 Air Filter (MERV 8) (4-Pack) Dust & Alle

USD 45.45
Filter King 10x23.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 10 x 23.5 x .75" - FK10x23.5x1A-M8-4

Filter King 10x23.5x1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 31.85
Filter King 8x36x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 8 x 36 x .75" - FK08x36x1-M8-4

Filter King 8x36x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated

USD 33.1
Filter King 20x30x0.5 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 29.5 x 0.5" - FB20X30X0.5 -4

Filter King 20x30x0.5 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 68.3
Filter King 18x20x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.5 x 19.5 x .75" - FB18X20 -12

Filter King 18x20x1 Air Filter | 12-PACK | MERV 8 HVAC Pleat

USD 64.3
Filter King 14x20x1 Air Filter (MERV 8) (3-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 13.5 x 19.5 x .75) - FB14X20-3

Filter King 14x20x1 Air Filter (MERV 8) (3-Pack) Dust & Alle

USD 23.91
Filter King 9x11.38x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 11.38 x .75"

Filter King 9x11.38x1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 23.0
Filter King 8x24x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 8 x 24 x .75"

Filter King 8x24x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated

USD 23.2
Filter King 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

Filter King 9x20x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated

USD 30.35