21x23.5x5 Air Filter

Improve your indoor air quality with our efficient 21x23.5x5 air filters designed for optimal performance

Product List

MERV 8 Pleated Air Filter 23.5x23.5x1 (2-Pack)

MERV 8 Air Filter (2-Pack)

Filterbuy

Product Review Score

4.42 out of 5 stars

123 reviews

$31.10

Filterbuy MERV 8 Pleated Air Filters (2-Pack)

MERV 8 Pleated Filters (2-Pack)

Filterbuy

Product Review Score

4.2 out of 5 stars

70 reviews

$29.81

Honeywell Trane MERV 10 Air Filter - 3 Pack

Honeywell MERV 10 Filter Pack

Honeywell

Product Review Score

4.68 out of 5 stars

220 reviews

$269.25

21x23.5x1 MERV 8 Pleated Air Filters (2-Pack)

MERV 8 Pleated Filters (2-Pack)

Filterbuy

Product Review Score

4.91 out of 5 stars

111 reviews

$37.04

Filtrete MERV 11 Electrostatic Air Filters, 6 Pack

Filtrete MERV 11 Air Filters

Filtrete

Product Review Score

4.55 out of 5 stars

177 reviews

$98.53 $85.84

MERV 8 Pleated Air Filters 6-Pack, 23.5"x23.5

MERV 8 Pleated Filters 6-Pack

Filterbuy

Product Review Score

4.82 out of 5 stars

66 reviews

$72.66

21.5x23.5 Air Filter 3-Pack | MERV 8

21.5x23.5 MERV 8 Filters

Filter King

Product Review Score

4.85 out of 5 stars

61 reviews

$42.49

MERV 11 Air Filter, 15 3/8" x 21 7/8" x 5 1/4", 2-Pack

MERV 11 Air Filter 2-Pack

Product Review Score

4.98 out of 5 stars

109 reviews

$89.99

Filtrete 11.5x23.5 Air Filter for Dust and Dander

Filtrete Dust & Dander Filter

Filtrete

Product Review Score

4.28 out of 5 stars

184 reviews

$55.99 $42.48

Aerostar MERV 8 Pleated Air Filter, 2 Pack

Aerostar MERV 8 Air Filters 2-Pack

Aerostar

Product Review Score

4.15 out of 5 stars

12 reviews

$84.69

AIRX 21x21.5x5 MERV 11 AC Air Filters 2-Pack

21x21.5 MERV 11 Filters

Airx Filters

Product Review Score

4.46 out of 5 stars

28 reviews

$59.21

Aerostar MERV 8 Pleated HVAC Filters - 2 Pack

MERV 8 Pleated Filters - 2 Pack

Aerostar

Product Review Score

4.25 out of 5 stars

192 reviews

$90.12