Discover our selection of 13x21.5x1 air filters, designed to keep your indoor air clean and fresh. These filters effectively capture dust, pollen, and other airborne allergens, ensuring a healthier environment for you and your family. Upgrade your HVAC system's efficiency by choosing the right air filter that suits your needs, and enjoy improved airflow and air quality in your home.
13x21.5x1 Air Filter
Enhance your indoor air quality with our durable 13x21.5x1 air filters designed for optimal performance
Product List
Filter King 13x21.5 Air Filter Pack
Filter King
Product Review Score
4.97 out of 5 stars
174 reviews$99.99
13x21.5 MERV 8 Filters 4-Pack
Filter King
Product Review Score
4.51 out of 5 stars
214 reviews$64.96
Pamlico MERV 11 Air Filters - 6 Pack
Pamlico Air
Product Review Score
4.86 out of 5 stars
54 reviews$50.98
21.5x13x1 MERV 8 Filters 4-Pack
Filter King
Product Review Score
4.54 out of 5 stars
225 reviews$50.36
13x21.5 Air Filters (4-Pack)
Filter King
Product Review Score
4.61 out of 5 stars
228 reviews$59.68
MERV 13 Air Filters - 12 Pack
Filterbuy
Product Review Score
4.63 out of 5 stars
100 reviews$109.92
When it comes to maintaining a healthy indoor environment, choosing the right air filter is essential. Our 13x21.5x1 air filters are designed to capture dust, pollen, and other airborne particles, ensuring cleaner air for you and your family. With their efficient filtration capabilities, these filters help prolong the lifespan of your HVAC system while improving overall air quality.
Available in various materials and MERV ratings, our selection of 13x21.5x1 air filters meets the diverse needs of any home or business. Regularly replacing these filters is crucial for optimal performance and energy efficiency. Browse our collection today to find the perfect fit for your air filtration system and take a step towards a healthier living space.