Glasfloss ZL 20x24x4 MERV 10 Furnace Filter (6 pack)
MERV 10 furnace filters with actual size 19-3/8 x 23-3/8 x 3-3/4, designed for home, business, and institutional use. Customers note easy installation and good value; some report sizing variation
Highlights
- MERV 10 filtration
- Actual size close to nominal
- Durable backing and USA-made
Pros
- MERV 10 efficiency
- Actual size close to 19-3/8 x 23-3/8 x 3-3/4
- Durable galvanized metal backing
- Made in the USA
- Easy to slide into furnace
Cons
- Sizing may vary from advertised
- Some reported damaged condition on arrival
Best For
Features
- Actual size is 19-3/8 x 23-3/8 x 3-3/4 inches
- Nominal size 20 x 24 x 4 inches with MERV 10 efficiency
- MERV 8 air flow rating at 0.25 in. W.C. pressure drop
- Durable galvanized metal backing for support
- Made in the USA, suitable for multiple settings