18x20x1, Protect Plus Industries Air Filter, MERV 3

★★★★★ 4.6 70 reviews

$51.96
Price when purchased online
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$51.96
Price when purchased online
Free shipping Free 30-day returns

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Product details

Management number 216531891 Release Date 2026/04/19 List Price $20.78 Model Number 216531891
Category
  • VALUE PACK - Includes 12 True Blue 18x20x1 air filters for consistent replacement and improved air quality in your home or office. Designed for easy installation and reliable performance.
  • EFFECTIVE FILTRATION - Fiberglass construction with MERV 3 rating helps capture dust, pollen, and lint. Reduces buildup in air ducts, air conditioners, and furnaces for cleaner airflow.
  • UNIVERSAL COMPATIBILITY - Fits most standard furnace and air conditioner systems that require 18x20x1 air filters. Ideal for residential and light commercial use.
  • LONG-LASTING PERFORMANCE - Each filter is designed for up to 30 days of use, providing dependable filtration and helping maintain HVAC system efficiency.
  • IMPROVED AIR QUALITY - Regular filter changes help reduce airborne particles and support a healthier indoor environment for your family or workspace.

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4.6 out of 5
★★★★★
70 ratings | 29 reviews
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