18x18x1 MERV 11 ( MPR 1000 FPR 7-8 ) Pleated 1 Air Filters for AC and Furnace. 4 PACK. Exact Size: 17-3/4 x 17-3/4 x 3/4

Filter King 5.5x11.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 5.5 x 11.5 x .75" | 5.5 H x 11.5 W x 1 D in | Wayfair FK5.5x11.5x1A-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 5.5x11x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 5.5 x 11 x .75" | 5.5 H x 11 W x 1 D in | Wayfair FK5.5x11x1A-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 4x11.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 11.5 x .75" | 4 H x 11.5 W x 1 D in | Wayfair FK4x11.5x1A-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 5x11x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 5 x 11 x .75" | 5 H x 11 W x 1 D in | Wayfair FK5x11x1A-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 4x11x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 11 x .75" | 4 H x 11 W x 1 D in | Wayfair FK4x11x1A-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 4.5x11.5x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4.5 x 11.5 x .75" | 4.5 H x 11.5 W x 1 D in | Wayfair FK4.5x11.5x1A-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

Filterbuy Air Conditioner Filter in Yellow | Wayfair AFB14x24x1M11pk4

Filterbuy 14x24x1 MERV 11 Pleated HVAC AC Furnace Air Filters (4-Pack) | Filterbuy Air Conditioner Filter in Yellow | Wayfair ... more

Filterbuy Air Conditioner Filter in Gray | Wayfair AFB20x23x1M8pk2

Filterbuy 20x23x1 MERV 8 Pleated HVAC AC Furnace Air Filters (2-Pack) | Filterbuy Air Conditioner Filter in Gray | Wayfair ... more