Open-Box & Used-Like-New Deals 30%+ Off

Filtrete 21x21x1 AC Furnace Air Filter, MPR 700, MERV 8, Tough on Pollen, Easy on Airflow, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 20.81 x 20.81 x 0.81 in)

DealMapped found a used-like-new / resale deal on Filtrete 21x21x1 AC Furnace Air Filter, MPR 700, MERV 8, Tough on Pollen, Easy on Airflow, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 20.81 x 20.81 x 0.81 in). The current observed price is $18.50, compared with a reference price of $43.69, for an estimated savings of $25.19 or 57% off.

• Condition: Used Like New
• Seller: Marketplace resale offer
• Current observed price: $18.50
• Reference price: $43.69
• Discount percentage: 57% off
• Category: Clothing, Shoes & Jewelry
• Last seen: June 16, 2026