Discover our selection of 21x21.5x5 air filters, designed to enhance the air quality in your home or office. These high-performance filters effectively trap dust, allergens, and other airborne particles, ensuring that you breathe cleaner, fresher air. With various options available, finding the perfect fit for your HVAC system and specific needs is easy and convenient.
21x21.5x5 Air Filter
Discover superior air quality with our 21x21.5x5 air filters designed for maximum efficiency and performance
Product List
MERV 11 Air Filters (2-Pack)
Filterbuy
Product Review Score
4.18 out of 5 stars
173 reviewsSGD 36.56
21.5x23.25 MERV 8 Air Filters - 4-Pack
Filter King
Product Review Score
4.91 out of 5 stars
71 reviewsSGD 59.24
MERV 8 HVAC Filters - 4-Pack
Filter King
Product Review Score
4.3 out of 5 stars
148 reviewsSGD 68.83
16x21.5 MERV 8 Filters - 4 Pack
Filter King
Product Review Score
4.7 out of 5 stars
204 reviewsSGD 55.46 SGD 50.41
MERV 8 Pleated Air Filters 3-Pack
Filterbuy
Product Review Score
4.33 out of 5 stars
220 reviewsSGD 179.76
MERV 13 Pleated Air Filters 3-Pack
Filterbuy
Product Review Score
4.81 out of 5 stars
12 reviewsSGD 224.84
MERV 8 Air Filters 4-Pack
Filter King
Product Review Score
4.68 out of 5 stars
153 reviewsSGD 86.84
Glasfloss MERV 10 Air Filters
Glasfloss
Product Review Score
4.44 out of 5 stars
77 reviewsSGD 63.06
Finding the right air filter can make a significant difference in maintaining the air quality of your home or workspace. Our 21x21.5x5 air filters are designed to fit snugly in your HVAC system, ensuring efficient filtration and optimal airflow. With a range of MERV ratings available, you can choose the perfect filter to capture dust, allergens, and other airborne particles, allowing you to breathe easier.
Not only do these air filters contribute to a healthier environment, but they can also help prolong the life of your HVAC system by reducing strain on the unit. Regular replacement of your air filters can enhance energy efficiency and lower utility costs, making it a smart investment for any property owner. Explore our selection today and enjoy cleaner air with our high-performance 21x21.5x5 air filters.