Discover our selection of 21.5x23x1 air filters, designed to enhance indoor air quality and promote a healthier living environment. These filters effectively capture dust, allergens, and other pollutants, ensuring that your home's air remains clean and fresh. Whether you're replacing an old filter or stocking up for the season, our durable and efficient options are sure to meet your needs.
21.5x23x1 Air Filter
Discover superior air quality with our 21.5x23x1 air filters designed for optimal performance and efficiency
Product List
MERV 8 Air Filters 4-Pack
Filter King
Product Review Score
4.72 out of 5 stars
205 reviewsSGD 69.50
MERV 13 Furnace Filters 6-Pack
Accumulair
Product Review Score
4.97 out of 5 stars
97 reviewsSGD 149.92
MERV 13 Air Filters - 4 Pack
Aerostar
Product Review Score
4.62 out of 5 stars
214 reviewsSGD 103.18
21x23x1 MERV 11 Air Filters (2-Pack)
Filterbuy
Product Review Score
4.71 out of 5 stars
133 reviewsSGD 49.55
MERV 8 Pleated Filters 4-Pack
Filter King
Product Review Score
4.29 out of 5 stars
94 reviewsSGD 63.68
MERV 13 Pleated Air Filters 6-Pack
Filter King
Product Review Score
4.55 out of 5 stars
209 reviewsSGD 116.44
21x23 MERV 11 Air Filters 3-Pack
Filterbuy
Product Review Score
4.1 out of 5 stars
65 reviewsSGD 69.39
Glasfloss MERV 10 Air Filters
Glasfloss
Product Review Score
4.55 out of 5 stars
89 reviewsSGD 72.58
MERV 13 Air Filters - 4 Pack
Aerostar
Product Review Score
4.45 out of 5 stars
39 reviewsSGD 101.91
MERV 8 Pleated Filters - 2-Pack
Filter King
Product Review Score
4.19 out of 5 stars
179 reviewsSGD 47.16
Discover the perfect solution for maintaining a clean and healthy indoor environment with our selection of 21.5x23x1 air filters. Designed to fit a variety of HVAC systems, these filters effectively capture dust, allergens, and other particles, ensuring that the air you breathe is fresh and pure. By investing in high-quality air filters, you not only enhance your air quality but also extend the lifespan of your heating and cooling units.
Our 21.5x23x1 air filters come in a range of MERV ratings, allowing you to choose the level of filtration that best suits your needs. With easy installation and dependable performance, these filters will help reduce allergens and improve overall air circulation in your home or office. Browse our collection today and take a step towards a healthier atmosphere for you and your loved ones.