20x20x4 Air Filter

Optimize your indoor air quality with efficient 20x20x4 air filters designed for maximum dust and allergen capture

Product List

Pamlico 20x20 Air Filters - MERV 11, 3 Pack

Pamlico 20x20 MERV 11 Filters

Pamlico Air

Product Review Score

4.73 out of 5 stars

47 reviews

$47.98

20x20x4 MERV 11 Pleated Air Filters (4-Pack)

20x20x4 MERV 11 Air Filters

Filterbuy

Product Review Score

4.87 out of 5 stars

213 reviews

$94.47 $89.75

Aerostar 20x20x4 MERV 11 Pleated Air Filters - 4 Pack

Aerostar MERV 11 Air Filters

Aerostar

Product Review Score

4.45 out of 5 stars

97 reviews

$83.24

Glasfloss MERV 10 20x20 Air Filters, Pack of 4

Glasfloss MERV 10 Filters - 20x20 (4 Pack)

Glasfloss

Product Review Score

4.95 out of 5 stars

71 reviews

$57.98

Glasfloss 20x20 Pleated MERV 10 Air Filters

Glasfloss MERV 10 Air Filters

Glasfloss

Product Review Score

4.13 out of 5 stars

186 reviews

$38.98

20x20x4 MERV 8 Air Filter 6-Pack

MERV 8 Air Filter Pack

Simply

Product Review Score

4.45 out of 5 stars

84 reviews

$89.97 $79.96

20x20x4 MERV 13 Air Filter 2-Pack

MERV 13 Air Filters 2-Pack

Simply

Product Review Score

4.19 out of 5 stars

25 reviews

$54.97 $44.56

Mann+Hummel MERV 8 Pleated Air Filters 3 Pack

Mann+Hummel MERV 8 Filters - 3 Pack

Product Review Score

4.28 out of 5 stars

128 reviews

$39.98

AprilAire 313 MERV 13 Air Filter - 20x20x4

AprilAire 313 MERV 13 Filter

Product Review Score

4.95 out of 5 stars

219 reviews

$58.99

Filterlux 20x20 Air Filter MERV 13 (2-Pack)

Filterlux MERV 13 Air Filters

Product Review Score

4.76 out of 5 stars

174 reviews

$49.99

AprilAire 310 MERV 11 Replacement Air Filter

AprilAire 310 MERV 11 Filter

Product Review Score

4.92 out of 5 stars

162 reviews

$56.99

20x20x4 MERV 13 Air Filter - Optimal Defense

20x20x4 MERV 13 Filter

Filterbuy

Product Review Score

4.66 out of 5 stars

196 reviews

$46.28