Glasfloss 21-1/2 x 21-1/2 x 7/8 MERV 10 air filter (3 pack)
Glasfloss air filters with nominal 22x22x1 and actual 21-1/2 x 21-1/2 x 7/8, MERV 10 filtration for AC and furnace. Wide applicability for residential and commercial use. Customers note good quality and effective dust retention, with sizing considerations
Highlights
- MERV 10 filtration
- actual size close to nominal
- made in the USA
Pros
- actual size matches fit
- high filtration efficiency (MERV 10)
- made in the USA
- easy to install
- good dust retention
Cons
- size may be an issue for some installs
Best For
Features
- Exact Size 21-1/2 x 21-1/2 x 7/8
- Nominal Size 22x22x1, Filtration Rating MERV 10. Comparable to MPR rating 600 to 800, or FPR rating 5 to 6. , For optimal performance, recommended to change at least every 3 months. , Air Flow is comparable to a MERV 8, Made in the USA. Ideal for residential and commercial use.