Lennox Compatible Filters

5 verified Lennox matches — same fit as OEM, often at a fraction of the cost.

Honeywell·20x25x4″·MERV 13

Compatibility100%

AllergiesSmokeAsthma

$44.99

9,300 reviews

Lennox·16x25x5″·MERV 11

Compatibility100%

Lennox systemsWhole-home

$59.99

5,400 reviews

Lennox·20x25x5″·MERV 11

Compatibility100%

Lennox systemsWhole-home

$62.99

6,800 reviews

Lennox·16x25x5″·MERV 16

Compatibility100%

AllergiesAsthmaHealthcare-grade

$79.99

3,400 reviews

Lennox·20x25x5″·MERV 16

Compatibility100%

AllergiesAsthmaHealthcare-grade

$84.99

2,900 reviews

Lennox sizes

Browse Lennox replacements by exact dimensions.