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Flanders 20 in. W X 360 in. H X 1 in. Synthetic 1 MERV Air Filter
Flanders 20 in. W X 360 in. H X 1 in. Synthetic 1 MERV Air Filter
Flanders 20 in. W X 360 in. H X 1 in. Synthetic 1 MERV Air Filter
Flanders 20 in. W X 360 in. H X 1 in. Synthetic 1 MERV Air Filter
Flanders 20 in. W X 360 in. H X 1 in. Synthetic 1 MERV Air Filter

Flanders 20 in. W X 360 in. H X 1 in. Synthetic 1 MERV Air Filter

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Meet the Flanders 20 in. W x 360 in. H x 1 in. Synthetic 1 MERV Air Filter — a purpose-built solution for large, non-pleated HVAC slots. With a 1-inch-thick synthetic media and a s…

Flanders MPN HH20130 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $116.99. Our online price is $129.99.
$129.99
Includes free shipping on orders over $75 · $8.99 standard below
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Every order helps keep your local hardware store on the corner.

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You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
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Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Meet the Flanders 20 in. W x 360 in. H x 1 in. Synthetic 1 MERV Air Filter — a purpose-built solution for large, non-pleated HVAC slots. With a 1-inch-thick synthetic media and a straightforward, low-resistance design, this filter delivers dependable pollen and dust/lint filtration while maintaining steady airflow in systems that require a slim, single-panel replacement. Actual size: 20 x 360 x 1 inches.

  • What it filters: Captures pollen and dust/lint to improve indoor air quality. It does not target bacteria, viruses, smoke, or mold spores.
  • Media and construction: Synthetic filter media, non-pleated, 1 inch thick, with no electrostatic charge and no metal mesh support.
  • Filtration rating: MERV 1 (Class II) filtration — suitable for basic filtration needs in applicable systems.
  • Fit and replacement: Trimmable to fit non-standard openings. Pack includes one filter.
  • Ideal applications: Designed for HVAC installations that require a tall, non-pleated panel (20x360x1). Perfect for older or simplicity-driven systems where low-resistance, straightforward filtration is preferred.
  • Why this option: A dependable, easy-to-replace solution when a non-pleated, synthetic filter is specified, offering predictable airflow and maintenance without the complexity of higher‑efficiency pleated designs.

Designed to fit specialized filtration slots, this Flanders filter provides reliable pollen and dust capture in a compact, non-pleated form factor. Use it in compatible units to maintain clean air and steady airflow without introducing unnecessary filtration complexity.

The Details Specifications

Brand Flanders
SKU 4021309
UPC 031949156428
Unit 0
Case Pack Quantity 1 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 18 × 18 × 21
Weight 5 lbs
Cubic Feet 3.9375 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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