20x21x5 Air Filter

Enhance your indoor air quality with our high-efficiency 20x21x5 air filters designed for optimal performance

Product List

20x21x5 MERV 16 Replacement Filter for Lennox

Lennox MERV 16 Filter

Product Review Score

4.75 out of 5 stars

173 reviews

$127.99

20x21x1 MERV 13 Air Filters - 5-Pack

20x21x1 MERV 13 Filters - 5 Pack

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Product Review Score

4.56 out of 5 stars

88 reviews

$105.20

Rheem Exact-Fit 21"x21"x5" Air Filters, 2-Pack

Rheem 21"x21"x5" Air Filters

Product Review Score

4.31 out of 5 stars

225 reviews

$110.36

Merv 16 High Efficiency Air Filter Replacement

MERV 16 Air Filter

Product Review Score

4.66 out of 5 stars

35 reviews

$69.99

Atomic MERV 16 Carbon Filter for Lennox PCO3-14-16

Lennox PCO3 MERV 16 Filter

Product Review Score

4.47 out of 5 stars

203 reviews

$215.99

Atomic 20x20 Furnace Filter compatible with P102-2020

Atomic 20x20 Furnace Filter

Product Review Score

4.68 out of 5 stars

153 reviews

$74.99

AIRX Clean Air Filters with Carbon Odor Control

AIRX Carbon Odor Filters

Airx Filters

Product Review Score

4.84 out of 5 stars

173 reviews

$68.70

Y6606 MERV 16 Replacement Filter for Lennox PCO3-16

Lennox PCO3-16 MERV 16 Filter

Product Review Score

4.57 out of 5 stars

217 reviews

$59.59

Trane FLRQB5AH21M11 MERV 11 Air Filter Replacement

Trane MERV 11 Air Filter

Product Review Score

4.12 out of 5 stars

183 reviews

$69.95

20x5 Expandable MERV 8 Air Filters (2-Pack)

20x5 MERV 8 Air Filters

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Product Review Score

4.58 out of 5 stars

171 reviews

$38.98