Filter King 21x23x1 MERV 13 Pleated Air Filter (4-Pack)
MERV 13 pleated air filters, size 21 x 23 x 1 (actual 21 x 23 x .75). Four filters per pack; designed for HVAC use and US-made. Customer insight notes good fit and air clarity, with mixed opinions on size and value
Highlights
- MERV 13 filtration
- US-made
- 4-pack for home use
Pros
- MERV 13 filtration
- Made in USA
- Includes 4 filters per pack
- Pleated design enhances particle capture
- Simple install
Cons
- Mixed feedback on true-to-size
Best For
Features
- MERV 13 rated pleated air filter for HVAC use
- Actual size 21 x 23 x .75 inches; nominal 21 x 23 x 1 inches
- Pack of 4 filters manufactured in the United States
- Designed to be replaced every 30–90 days for optimal performance
