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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 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 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 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 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 9×11.38×1 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 9×11.38×1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 23.0
Filter King 23.5x20x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 23.5 x 20 x .75" - FK23.5x20x1A-M8 -4

Filter King 23.5x20x1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 48.85
Filter King 23.5×37.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 23.5 x 37.5 x .75"

Filter King 23.5×37.5×1 Air Filter | 4-PACK | MERV 8 HVAC Pl

USD 59.1
Filter King 13.5x17x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 13.5 x 17 x .75) - FK13.5x7x1A-M8-4

Filter King 13.5x17x1 Air Filter (MERV 8) (4-Pack) Dust & Al

USD 40.05
Filter King 15x45x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 15 x 45 x .75) - FK15x45x1A-M8-4

Filter King 15x45x1 Air Filter (MERV 8) (4-Pack) Dust & Alle

USD 90.45
Filter King 9x55x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9 x 55 x .75) - FK9x55x1A-M8-4

Filter King 9x55x1 Air Filter (MERV 8) (4-Pack) Dust & Aller

USD 75.65
Filter King 8x39x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 8 x 39 x .75" - FK8x39x1A-M8-4

Filter King 8x39x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated

USD 55.4
Filter King 13.5x6.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 13.5 x 6.5 x .75) - FK13.5x6.5x1A-M8-4

Filter King 13.5x6.5x1 Air Filter (MERV 8) (4-Pack) Dust & A

USD 39.4
Filter King 10x26x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 10 x 26 x .75) - FK10x26x1A-M8-4

Filter King 10x26x1 Air Filter (MERV 8) (4-Pack) Dust & Alle

USD 43.25
Filter King 7x58.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7 x 58.5 x .75) - FK7x58.5x1A-M8-4

Filter King 7x58.5x1 Air Filter (MERV 8) (4-Pack) Dust & All

USD 73.15
Filter King 16.5x39.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 16.5 x 39.5 x .75" - FK16.5x39.5x1A-M8-4

Filter King 16.5x39.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pl

USD 59.85
Filter King 15x60.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15 x 60.5 x .75" - FK15x60.5x1A-M8-4

Filter King 15x60.5x1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 90.45
Filter King 9x30x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9 x 30 x .75" - FK9x30x1A-M8-4

Filter King 9x30x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated

USD 60.9
Filter King 4.5x39x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 4.5 x 39 x .75" - FK4.5x39.5x1A-M8-4

Filter King 4.5x39x1 Air Filter | 4-PACK | MERV 8 HVAC Pleat

USD 43.0
Filter King 13x50x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 13 x 50 x .75" - FK13x50x1A-M8-4

Filter King 13x50x1 Air Filter | 4-PACK | MERV 8 HVAC Pleate

USD 14.0
Filter King 10x12x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 10 x 12 x .75" - FK10x12x1-M8 - 4

Filter King 10x12x1 Air Filter | 4-PACK | MERV 8 HVAC Pleate

USD 26.9
Filter King 16x57.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 16 x 57.5 x .75" - FK16x57.5x1A-M8-4

Filter King 16x57.5x1 Air Filter | 4-PACK | MERV 8 HVAC Plea

USD 117.25
Filter King 10x14x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9.5 x 13.5 x .75" - FB10X14-4

Filter King 10x14x1 Air Filter | 4-PACK | MERV 8 HVAC Pleate

USD 26.9
Filter King 18x18x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.5 x 17.5 x .75" - FB18X18X2-12

Filter King 18x18x1 Air Filter | 12-PACK | MERV 8 HVAC Pleat

USD 94.6