Air Demon Air Filters

Filterbuy replacement air filters offer the same high quality materials and performance as the name brand but at a fraction of the cost.

  • Available in MERV 8, 11, and 13
  • Free shipping
  • Guaranteed to fit
  • Lowest prices
  • Made in the U.S.A.
  • Family owned and operated

Customer Review

"Absolutely the best and most efficient way to purchase furnace filters! No problem finding the filter I needed, filters delivered within a couple of days, fit perfectly and shipping is FREE! What's not to like?"-Christine P.
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16x20x5 MERV 8 16x20x5 MERV 11 16x20x5 MERV 13

Actual: 15 7/8 x 19 3/4 x 4 3/8

Designed to Fit:
209894, FC35A1035, FC100A1003, FC200E1003, F100F2028, F100F1004, F100B1008, F150E1000, F25F1075, F35F1032

Select MERV Rating
MERV
8
Standard
MERV
11
Superior
MERV
13
Optimal

MERV 8 - filters pollen, dust mites, mold, and larger dust particles like pudding mix MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour MERV 13 - filters pollen, dust mites, mold, all bacteria, proplet nuclei (sneeze), and tobacco smoke

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16x25x5 MERV 8 16x25x5 MERV 11 16x25x5 MERV 13

Actual: 15 7/8 X 24 3/4 X 4 3/8

Designed to Fit:
203719 FC35A1001 FC100A1026 FC100A1029 FC100C1009 FC200E1011 FC200E1029

Select MERV Rating
MERV
8
Standard
MERV
11
Superior
MERV
13
Optimal

MERV 8 - filters pollen, dust mites, mold, and larger dust particles like pudding mix MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour MERV 13 - filters pollen, dust mites, mold, all bacteria, proplet nuclei (sneeze), and tobacco smoke

ea
Thumb

20x20x5 MERV 8 20x20x5 MERV 11 20x20x5 MERV 13

Actual: 19 3/4 X 19 7/8 X 4 3/8

Designed to Fit:
203721 FC35A1019 FC100A1011 FC200E1011

Select MERV Rating
MERV
8
Standard
MERV
11
Superior
MERV
13
Optimal

MERV 8 - filters pollen, dust mites, mold, and larger dust particles like pudding mix MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour MERV 13 - filters pollen, dust mites, mold, all bacteria, proplet nuclei (sneeze), and tobacco smoke

ea
Thumb

20x25x5 MERV 8 20x25x5 MERV 11 20x25x5 MERV 13

Actual: 20 X 24 3/4 X 4 3/8

Designed to Fit:
203720 FC35A1027 FC100A1037 FC200E1037

Select MERV Rating
MERV
8
Standard
MERV
11
Superior
MERV
13
Optimal

MERV 8 - filters pollen, dust mites, mold, and larger dust particles like pudding mix MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour MERV 13 - filters pollen, dust mites, mold, all bacteria, proplet nuclei (sneeze), and tobacco smoke

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