Filter King 4x37.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 37.5 x .75" | 4 H x 37.5 W x 1 D in | Wayfair FK4x37.5x1A-M8-4

Filter King 4.5x49.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 49.5 x .75" | 4.5 H x 49.5 W x 1 D in | Wayfair FK4.5x49.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x19.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 19.5 x .75" | 4.5 H x 19.5 W x 1 D in | Wayfair FK4.5x19.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x60.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 60.5 x .75" | 4.5 H x 60.5 W x 1 D in | Wayfair FK4.5x60.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x21.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 21.5 x .75" | 4.5 H x 21.5 W x 1 D in | Wayfair FK4.5x21.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x43.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 43.5 x .75" | 4.5 H x 43.5 W x 1 D in | Wayfair FK4.5x43.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x54.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 54.5 x .75" | 4.5 H x 54.5 W x 1 D in | Wayfair FK4.5x54.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x20.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 20.5 x .75" | 4.5 H x 20.5 W x 1 D in | Wayfair FK4.5x20.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x66.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 66.5 x .75" | 4.5 H x 66.5 W x 1 D in | Wayfair FK4.5x66.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x14.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 14.5 x .75" | 4.5 H x 14.5 W x 1 D in | Wayfair FK4.5x14.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x36.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 36.5 x .75" | 4.5 H x 36.5 W x 1 D in | Wayfair FK4.5x36.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x59.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 59.5 x .75" | 4.5 H x 59.5 W x 1 D in | Wayfair FK4.5x59.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x53.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 53.5 x .75" | 4.5 H x 53.5 W x 1 D in | Wayfair FK4.5x53.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x24.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 24.5 x .75" | 4.5 H x 24.5 W x 1 D in | Wayfair FK4.5x24.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x41.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 41.5 x .75" | 4.5 H x 41.5 W x 1 D in | Wayfair FK4.5x41.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x62.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 62.5 x .75" | 4.5 H x 62.5 W x 1 D in | Wayfair FK4.5x62.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x58.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 58.5 x .75" | 4.5 H x 58.5 W x 1 D in | Wayfair FK4.5x58.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x40.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 40.5 x .75" | 4.5 H x 40.5 W x 1 D in | Wayfair FK4.5x40.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x46.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 46.5 x .75" | 4.5 H x 46.5 W x 1 D in | Wayfair FK4.5x46.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x17.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 17.5 x .75" | 4.5 H x 17.5 W x 1 D in | Wayfair FK4.5x17.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x42.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 42.5 x .75" | 4.5 H x 42.5 W x 1 D in | Wayfair FK4.5x42.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x47.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 47.5 x .75" | 4.5 H x 47.5 W x 1 D in | Wayfair FK4.5x47.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x18.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 18.5 x .75" | 4.5 H x 18.5 W x 1 D in | Wayfair FK4.5x18.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x33.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 33.5 x .75" | 4.5 H x 33.5 W x 1 D in | Wayfair FK4.5x33.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x63.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 63.5 x .75" | 4.5 H x 63.5 W x 1 D in | Wayfair FK4.5x63.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4.5x15.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 15.5 x .75" | 4.5 H x 15.5 W x 1 D in | Wayfair FK4.5x15.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x41.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 41.5 x .75" | 4 H x 41.5 W x 1 D in | Wayfair FK4x41.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x53.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 53.5 x .75" | 4 H x 53.5 W x 1 D in | Wayfair FK4x53.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x49.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 49.5 x .75" | 4 H x 49.5 W x 1 D in | Wayfair FK4x49.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x21.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 21.5 x .75" | 4 H x 21.5 W x 1 D in | Wayfair FK4x21.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x33.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 33.5 x .75" | 4 H x 33.5 W x 1 D in | Wayfair FK4x33.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x46.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 46.5 x .75" | 4 H x 46.5 W x 1 D in | Wayfair FK4x46.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x13.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 13.5 x .75" | 4 H x 13.5 W x 1 D in | Wayfair FK4x13.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x53x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 53 x .75" | 4 H x 53 W x 1 D in | Wayfair FK4x53x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x63.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 63.5 x .75" | 4 H x 63.5 W x 1 D in | Wayfair FK4x63.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x50.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 50.5 x .75" | 4 H x 50.5 W x 1 D in | Wayfair FK4x50.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x35.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 35.5 x .75" | 4 H x 35.5 W x 1 D in | Wayfair FK4x35.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more

Filter King 4x52.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 52.5 x .75" | 4 H x 52.5 W x 1 D in | Wayfair FK4x52.5x1A-M8-4

Features:FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 4.5" x 10.5" x 1a" - Actual Size: 4.5" x 10.5" x .75"MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA... ... more