All 4" Furnace Filters

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• Standard 16x25x4(3.68"). Actual Size 15, 4 in x 24, 4 in x 3, 68 in

• Standard 20x25x4(3.68"). Actual Size 19, 4 in x 24, 4 in x 3, 68 in

• Standard 20x20x4(3.68"). Actual Size 19, 4 in x 19, 4 in x 3, 68 in

• Standard 16x20x4(3 3/4"). Actual Size 15 1/2" x 19 1/2" x 3 3/4"

• Standard 18x24x4(3 3/4") MERV 8. Actual Size 17 1/2" x 23 1/2" x 3 3/4"

• Standard 20x24x4(3 3/4") MERV 8. Actual Size 19 1/2" x 23 1/2" x 3 3/4"

• Standard 24x24x4(3 3/4") MERV 8. Actual Size 23 1/2" x 23 1/2" x 3 3/4"

• Standard 12x24x4(3 3/4") MERV 8. Actual Size 11 1/2" x 23 1/2" x 3 3/4"

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• 3M Filtrete and Replacements 16x25x4(3.68"). Actual Size 15, 4 in x 24, 4 in x 3, 68 in

• 3M Filtrete and Replacements 20x20x4(3.68"). Actual Size 19, 4 in x 19, 4 in x 3, 68 in

• 3M Filtrete and Replacements 20x25x4(3.68"). Actual Size 19, 4 in x 24, 4 in x 3, 68 in

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• 16x25x4(4 3/8") Honeywell FC100A1029. Actual Size 15 3/4" x 24 3/4" x 4 3/8"

• 20x25x4(4 3/8") Honeywell FC100A1037. Actual Size 19 7/8" x 24 3/4" x 4 3/8"

• 20x20x4(4 3/8") Honeywell FC100A1011. Actual Size 19 1/2" x 19 3/4" x 4 3/8"

• 16x20x4(4 3/8") Honeywell FC100A1003. Actual Size 15 7/8" x 19 7/8" x 4 3/8"

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• 16x25x4(4 5/16") Carrier FILCCCAR0016. Actual Size 15 3/4" x 24 3/4" x 4 5/16"

• 20x25x4(4 5/16") Carrier FILCCCAR0020. Actual Size 19 7/8" x 24 3/4" x 4 5/16"

• 24x25x4(4 5/16") Carrier FILCCCAR0024. Actual Size 23 11/16" x 24 3/4" x 4 5/16"

• GAPCCCAR1625 Carrier Infinity Air Purifier Cartridge. MERV 15 Actual Size 24 1/2" x 17 1/16" x 3 9/16" Fits GAPAAXCC1625

• GAPCCCAR2025 Carrier Infinity Air Purifier Cartridge. MERV 15 Actual Size 24 3/8" x 20 1/16" x 3 9/16" Fits GAPAAXCC2025