Simply air filter compatibility shows universal fit for most HVAC brands and units
Simply air filter particle capture close-up highlights filtration of dust and pollutants
Simply air filter pleated core close-up demonstrates high surface area for efficiency
Simply air filter six-pack option displays value and convenient replacement
Simply air filter made in USA seal emphasizes American craftsmanship and quality
Simply air filter installation guide illustrates easy replacement steps
Simply air filter return grille arrow image shows correct airflow orientation

Simply

Simply 18x20x1 Air Filter, MERV 11 – 6 Pack, Made in USA

High-performance tools and home improvement made for confident daily results

$63.24

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Why customers choose TaskHolt Tools

Elevate Indoor Air Quality with Simply 18x20x1 MERV 11 Filters

Meet Simply Filters’ 18" x 20" x 1" air filter set, designed to fit a wide range of residential and commercial HVAC systems. With an actual size of 17.75" x 19.75" x 0.75", these filters install smoothly in slots that require a precise fit, making replacements straightforward and quick.

These MERV 11 filters target everyday indoor irritants, including dust, mold spores, pet dander, pollen, and auto exhaust. By trapping a large share of airborne particles, they help maintain cleaner surfaces and steadier airflow, supporting a more comfortable living and working environment. While results can vary by usage and space, the aim is to support a consistently clean air baseline without making guarantees about health outcomes.

Why choose Simply MERV 11 in a six-pack

  • Universal compatibility: designed to fit most 18" x 20" x 1" slots and brands, with slotted replacement in mind.
  • Advanced pleated technology: a higher pleat count provides more filtration area for better coverage and smoother airflow.
  • Long-lasting filtration: up to 3 months of use under typical conditions, helping reduce frequent replacements.

Quality, speed, and value

  • Easy installation: slide the filter into the slot or align with the return grille arrows for simple setup.
  • Made in the USA: 100% American components and recycled materials emphasize local craftsmanship and quality control.
  • Careful packaging: heat-sealed shrink wrap keeps each filter clean until use.
  • Subscription savings: explore auto-delivery options for convenient, regular replacements.

In this six-pack, you receive dependable filtration ready for homes, offices, schools, and other spaces where clean air matters. The combination of universal fit, high filtration surface, and durable build supports hassle-free maintenance and consistent performance across seasons.

FAQ

Q: What is the actual size of the Simply 18x20x1 filter?

A: Actual size is 17.75 x 19.75 x 0.75 inches, designed to fit most 18x20x1 slots.

Q: How long do these filters last in typical use?

A: Typically up to 3 months, depending on environment and HVAC usage.

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