Glasfloss 20x20x4 MERV 11 Air Filters, 6 Pack

Breathe easier with high-efficiency filters that capture dust and allergens effortlessly

Product Price

$99.95

Product Review Score

4.14 out of 5 stars

98 reviews

Product Brand

Product Summary

Keep your air fresh and clean with Glasfloss 20x20x4 MERV 11 Air Filters. This six-pack is perfect for trapping dust, pollen, and allergens, helping you breathe easier at home.

We found the best options for you

Loading...

When you order through these links, we may earn a commission at no additional cost to you.

Additional Product Details

  • Actual size is 19-1/2 x 19-1/2 x 3-3/4, perfect for snug fits
  • Nominal size is 20x20x4, so you know it’s the right size for your setup
  • MERV 11 rating traps a wide range of particles and allergens
  • Comparable to MPR ratings of 1000 to 1200 and FPR 7, ensuring strong performance
  • Change your filters every 3 months for the best results
  • Made from 100% synthetic fibers that are electrostatically charged
  • Thermally bonded design boosts durability and efficiency
  • Engineered gradient structure provides high dust-holding capacity
  • Long-lasting performance makes them great for serious filtration needs
  • Made in the USA, supporting quality manufacturing
  • Ideal for homes, offices, schools, healthcare, and industrial settings
  • Just remember, it doesn't fit 5-inch or 4-3/8-inch depth filters; check your size before buying

View more Glasfloss products.

Our Policies

Secure Checkout
Guaranteed safe & secure
Fast Shipping
Fast shipping to your doorstep
Tier1 Merv 11 19x20x4.25 Air Filter Pack

Merv 11 Air Filter Pack

Product Review Score

4.47 out of 5 stars

222 reviews

$59.99

20x20x4 MERV 13 Air Filter (2-Pack)

MERV 13 Air Filter 2-Pack

Product Review Score

4.9 out of 5 stars

107 reviews

$56.10

Glasfloss ZL MERV 10 AC & Furnace Filter Pack

Glasfloss MERV 10 Filter Pack

Product Review Score

4.53 out of 5 stars

160 reviews

$73.98

20x20x4 MERV 8 Pleated Air Filters (Pack of 4)

20x20x4 MERV 8 Filters (4-Pack)

Product Review Score

4.22 out of 5 stars

144 reviews

$84.44