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Here at Filter Shipping, we carry a full line up of Lennox filters for your furnace, air conditioner, and air cleaner. Lennox also makes filters for other major brands, such as Honeywell, Air Bear, Aprilaire, and more.

Lennox Replacement Expandable Filters
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Lennox x0444 MERV 10 Expandable Filter PMAC-12C Lennox Healthy Climate x0445 Lennox x5424 MERV 16 Expandable Filter
Lennox Healthy Climate
x0444 Expandable Filter
Nominal Expanded Size: 16" x 27" x 6"
Exact Collapsed Size: 3" x 26.5" x 6.125"
Filter Rating: MERV 10
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x0445 Expandable Filter
Nominal Expanded Size: 20" x 25" x 6"
Exact Collapsed Size: 3" x 24.5" x 6.125"
Filter Rating: MERV 10
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x5424 Expandable Filter
Nominal Expanded Size: 20" x 25" x 6"
Exact Collapsed Size: 3" x 24.5" x 6.125"
Filter Rating: MERV 16
Expected Duration: 6 to 12 monthsAllergen Grade: Premium
Lennox x5425 MERV 16 Expandable Filter Lennox x8309 MERV 11 Expandable Filter Lennox x8309 MERV 11 Expandable Filter 2 Pack
Lennox Healthy Climate
x5425 Expandable Filter
Nominal Expanded Size: 16" x 27" x 6"
Exact Collapsed Size: 3" x 26.5" x 6.125"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Allergen Grade: Premium
 		Lennox Healthy Climate
x8309 Expandable Filter
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x8309 Expandable Filter
2 Pack
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox x8310 MERV 11 Expandable Filter Lennox x8310 MERV 11 Expandable Filter 2 Pack Lennox x8311 MERV 11 Expandable Filter
Lennox Healthy Climate
x8310 Expandable Filter
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x8310 Expandable Filter
2 Pack
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x8311 Expandable Filter
Nominal Size: 20" x 20" x 5"
Exact Size: 19.75" x 20" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox x8311 MERV 11 Expandable Filter 2 Pack Lennox x8312 MERV 16 Expandable Filter Lennox x8312 MERV 16 Expandable Filter 2 Pack
Lennox Healthy Climate
x8311 Expandable Filter
2 Pack
Nominal Size: 20" x 20" x 5"
Exact Size: 19.75" x 20" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x8312 Expandable Filter
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x8312 Expandable Filter
2 Pack
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Lennox x8313 MERV 16 Expandable Filter Lennox x8313 MERV 16 Expandable Filter 2 Pack Lennox x8314 MERV 16 Expandable Filter
Lennox Healthy Climate
x8313 Expandable Filter
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x8313 Expandable Filter
2 Pack
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
 		Lennox Healthy Climate
x8314 Expandable Filter
Nominal Size: 20" x 20" x 5"
Exact Size: 19.75" x 20" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Lennox x8314 MERV 16 Expandable Filter 2 Pack
Lennox Healthy Climate
x8314 Expandable Filter
2 Pack
Nominal Size: 20" x 20" x 5"
Exact Size: 19.75" x 20" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months