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Ruud Compatible Air Filter Replacements

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

CUSTOMER REVIEW

5star

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.

filter 17.5 X 21 X 4.5 - MERV 11
17.5 X 21 X 4.5 - MERV 11
Actual: 17.25x20.75x4.38"
Designed to Fit:
RXHF-E17AM10 RXHF-E17AM13

MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

$59.67 ea

as low as $ 37.28 when you buy 2 or more

filter 21 X 21 X 4.5 - MERV 11
21 X 21 X 4.5 - MERV 11
Actual: 20.75x20.75x4.38"
Designed to Fit:
RXFH-E21AM10 RXFH-E21AM13

MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

$62.96 ea

as low as $ 39.33 when you buy 2 or more

filter 21 X 24.5 X 4.5 - MERV 11
21 X 24.5 X 4.5 - MERV 11
Actual: 20.75x24.25x4.38"
Designed to Fit:
RXHF-E24AM10 RXHF-E24AM13

MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

$43.76 ea

as low as $ 39.71 when you buy 2 or more