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“Filterbuy 18x22x4 Air Filter MERV 13 Optimal Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)” has been added to your cart. View cart

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Filterbuy 18x22x4 Air Filter MERV 11 (MPR 1200) Allergen Defense Replacement (1-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 17.50 x 21.50 x 3.63)

Original price was: $47.31.Current price is: $28.39.
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Filterbuy 18x22x4 Air Filter MERV 11 Allergen Defense (12-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

Original price was: $284.52.Current price is: $89.43.
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Filterbuy 18x22x4 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

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Filterbuy 18x22x4 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 17.50 x 21.50 x 3.63)

Original price was: $109.40.Current price is: $64.28.
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Filterbuy 18x22x4 Air Filter MERV 13 Optimal Defense (1-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

Original price was: $55.94.Current price is: $33.56.
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Filterbuy 18x22x4 Air Filter MERV 13 Optimal Defense (12-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

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Filterbuy 18x22x4 Air Filter MERV 13 Optimal Defense (3-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

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Filterbuy 18x22x4 Air Filter MERV 13 Optimal Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

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Filterbuy 18x22x4 Air Filter MERV 13 Optimal Defense (5-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

Original price was: $156.55.Current price is: $86.88.
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Filterbuy 18x22x4 Air Filter MERV 13 Optimal Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

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Filterbuy 18x22x4 Air Filter MERV 8 (MPR 700) Dust Defense Replacement (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 17.50 x 21.50 x 3.63)

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Filterbuy 18x22x4 Air Filter MERV 8 Dust Defense (1-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

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Filterbuy 18x22x4 Air Filter MERV 11 (MPR 1200) Allergen Defense Replacement (1-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 17.50 x 21.50 x 3.63)

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Filterbuy 18x22x4 Air Filter MERV 8 Dust Defense (1-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 21.50 x 3.63 Inches)

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