Photo 1 of Filtrete 20x20x4 Air Filter MPR 1550 DP MERV 12, Healthy Living Ultra Allergen Deep Pleat, 2-Pack, Fits Lennox & Honeywell Devices (exact dimensions 19.88 x 19.88 x 4.31)

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Photo 1 of Filtrete 20x20x4 Air Filter MPR 1550 DP MERV 12, Healthy Living Ultra Allergen Deep Pleat, 2-Pack, Fits Lennox & Honeywell Devices (exact dimensions 19.88 x 19.88 x 4.31) Photo 2 of Filtrete 20x20x4 Air Filter MPR 1550 DP MERV 12, Healthy Living Ultra Allergen Deep Pleat, 2-Pack, Fits Lennox & Honeywell Devices (exact dimensions 19.88 x 19.88 x 4.31)