100% Secure Payments

Loved by our Customers. 8000+ Reviews

Free Shipping and Free Returns

18x20x1 Air Filter MERV 11 Glasfloss Z-Line – Box of 12

Actual Size: 17-1/2 x 19-1/2 x 7/8
  • SKU: M1118201
  • MR-11
  • Compare to MPR 1000-1200, or FPR 7
  • Moisture Resistant, Heavy-Duty Construction
  • Eco-Friendly Design with Post-Consumer Materials
  • Easy to Install and Remove
  • 100% Synthetic Fibers Won’t Support Microbial Growth
  • 3 Month (90 day) air filter (More info)

Original price was: $133.70.Current price is: $123.73.

Free Shipping
Free Returns
100% Secure Checkout
Free Shipping Free Returns Secure Checkout

Ships in 5-10 Business Days

Our MERV 11 air filters are a great upgrade from MERV 8 air filters if you have pets in your home or suffer from allergies or asthma. These air filters are 85% efficient at capturing particles in the 3-10 micron range and up to 80% efficient at capturing particles in the 1.0-3.0 micron range. The filter frame is constructed of heavy-duty beverage board to insure it maintains its integrity for the duration of its service life. The pleated media won't support microbial growth due to its 100% synthetic construction. Our MERV 11 air filters last up to 90 days depending on the conditions in your home. Check out our "Air Filter Change Frequency" page for additional information.
Customer Reviews
5.0 Based on 2 Reviews
5 ★
100% 
2
4 ★
0% 
0
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
DL
06/09/2023
dennis l.
United States United States
I recommend this product

4.8 Stars

I like buying from Air Filters Unlimited. Their brand and size assortment is hands-down the best I can find on the web, and their website is super easy to navigate. Even during the pandemic, they were able to get what I needed. My recent shipment of Glasfloss MERV 11 was easy and fast. One minor hiccup was not AFU's fault, and that was a slightly lower rated filter (one Glasfloss HV MERV 10) arriving in a box of 12 filters from the manufacturer. I'm not going to have a cow over that, and I expect buy from them again in a year.

RV
12/28/2016
Ronnie V.
US

Good quality at a good

Good quality at a good price