16x20x4 Air Filters

Shop premium HVAC air filters in the most popular residential and commercial filter sizes including 16x20x1, 16x25x2, 20x20x1, 24x24x1, 20x40x1, and more. HVAC Direct USA offers high-quality pleated furnace and AC filters in MERV 8, MERV 11, and MERV 13 ratings designed to improve indoor air quality and HVAC system performance.

Find the right replacement air filters for your furnace, air conditioner, heat pump, or HVAC system with fast USA shipping and expert support.

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16x20x4 Air Filters

Filter King 16x20x4 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 19.5 x 3.75"

Filter King 16x20x4 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 19.5 x 3.75"

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16x20x4 Air Filters

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Filter King 16x20x4 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 19.5 x 3.75"

Filter King 16x20x4 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 19.5 x 3.75"