Menu

We independently review everything we recommend. When you buy through our links, we may earn a commission at no additional cost to you. Learn more ›

Best NordicPure Furnace Filters

NordicPure furnace filters offer premium MERV 12 replacements for Honeywell and Lennox systems in 2-packs. Available in popular sizes like 16x25x5 and 20x25x5 for superior air quality.

2 products

Select a Product

Click on a product from the list to view its details.

PRIME

ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Last update on . Affiliate links, prices, images, product titles, and highlights from Amazon Product Advertising API.

Pros

Cons

Key Features

User Reviews

Your review will be visible after approval.

Loading reviews...
Nordic Pure 20x25x5 MERV 12 Honeywell Replacement Furnace Air Filters 2 Pack - Actual 19.88x24.88x4.38, Made in USA

Nordic Pure 20x25x5 MERV 12 air filters are a 2-pack replacement for Honeywell and Lennox systems, featuring actual dimensions of 19 7/8 x 24 7/8 x 4 3/8 for precise fit. They capture particles as small as 0.3 microns including allergens, pet dander, and bacteria, ideal for allergy sufferers and pet owners.

  • Captures fine particles down to 0.3 microns for superior allergy and asthma relief
  • Electrostatic media traps pet dander, dust, pollen, and mold spores like a magnet
  • Prevents bacteria and mold growth for healthier indoor air without chemicals
  • Boosts HVAC efficiency to lower energy costs and extend system life
  • Durable moisture-resistant frame with metal mesh for long-lasting performance

High-efficiency MERV 12 filtration equivalent to MPR 1500-1900. Antimicrobial media reduces irritants for cleaner breathing air. Heavy-duty construction supports heavy airflow without collapsing.

Requires precise measurement of actual filter size for proper fit. Higher MERV rating may strain weaker residential HVAC systems. Nominal and actual sizes differ, potentially causing initial confusion.

Nordic Pure 16x25x5 MERV 12 Honeywell Replacement Furnace Air Filters 2 Pack - Actual 15-3/4 x 24-3/4 x 4-3/8

Nordic Pure 16x25x5 MERV 12 filters are precise replacements for Honeywell/Lennox systems with actual size 15-3/4 x 24-3/4 x 4-3/8 inches, capturing particles as small as 0.3 microns including pollen, pet dander, and mold. Ideal for allergy sufferers, pet owners, and anyone prioritizing clean air and HVAC efficiency.

  • Advanced MERV 12 filtration traps pollen, pet dander, dust mites, mold spores, and particles down to 0.3 microns
  • Electrostatic media attracts allergens like a magnet for superior air purification and healthier indoor breathing
  • Antimicrobial filter media prevents bacteria and mold growth without added chemicals
  • Heavy-duty moisture-resistant frame with metal mesh support ensures durability and reliable performance
  • Boosts HVAC efficiency to cut energy costs and extend system lifespan

Exceptional capture of fine allergens and dust for allergy and asthma relief. Durable construction withstands moisture and heavy use. Improves airflow efficiency and reduces utility bills.

Actual size differs from nominal; requires measuring current filter for perfect fit. Lifespan varies by environment, needing changes every 3-6 months in dusty or pet-heavy homes. Higher MERV rating may restrict airflow in older or weaker HVAC systems.

Welcome to the ultimate guide for NordicPure furnace filters, where quality meets compatibility for your home HVAC system. These high-performance MERV 12 air filters come in convenient 2-packs, specifically designed as replacements for Honeywell and Lennox units in sizes like 16x25x5 (actual 15 3/4 x 24 3/4 x 4 3/8) and 20x25x5 (actual 19 7/8 x 24 7/8 x 4 3/8). Whether you're tackling seasonal allergies or maintaining peak furnace efficiency, these filters deliver reliable filtration without compromising airflow.

Why NordicPure Stands Out in Furnace Filtration

NordicPure has built a strong reputation for crafting durable, effective air filters that prioritize both performance and precise fit. What sets them apart is their focus on MERV 12 rating, which captures fine particles like dust, pollen, and pet dander while allowing optimal airflow to prevent strain on your furnace. Ideal for homeowners in dusty environments or those with respiratory concerns, these filters extend HVAC lifespan and enhance indoor air quality.

As part of the broader Furnace Filters category, NordicPure options shine for their compatibility with popular brands. If you're exploring alternatives, compare them to selections in Filtrete Furnace Filters or Filterbuy Furnace Filters for different filtration levels or budgets.

Key Features and What to Look for When Buying

When selecting a NordicPure filter, start with sizing—measure your existing filter precisely, as these are custom-cut for Honeywell/Lennox setups. The 16x25x5 size fits many standard residential furnaces, offering compact efficiency for smaller systems, while the 20x25x5 provides broader coverage for larger units.

  • MERV 12 Efficiency: Traps 80% of particles down to 3 microns, balancing filtration and airflow.
  • Replacement Design: Exact dimensions ensure seamless installation—no modifications needed.
  • 2-Pack Value: Stock up for 6 months of protection with recommended quarterly changes.
  • Durable Media: Pleated construction resists tearing and maintains shape over time.

Consider your home's needs: the smaller 16x25x5 excels in milder climates or apartments, while the 20x25x5 suits bigger homes with high air volume. Both promote energy savings by reducing dust buildup on coils. For overall HVAC maintenance, pair with items from our HVAC section or Furnace Parts & Accessories.

Comparing NordicPure Models: Which Size is Right for You?

Choosing between the 16x25x5 and 20x25x5 boils down to your furnace model. The 16x25x5 (15 3/4 x 24 3/4 x 4 3/8 actual) is perfect for compact systems, delivering robust filtration in tighter spaces without restricting air. Homeowners report easier installs and consistent performance.

The 20x25x5 (19 7/8 x 24 7/8 x 4 3/8 actual) handles higher airflow demands, making it ideal for multi-story homes or those with pets and allergies. Both share the same MERV 12 media for comparable allergen reduction, but the larger size may suit systems with heavier dust loads. Check your unit's manual or existing filter for the best match—NordicPure's precision engineering minimizes bypass air.

Common Use Cases and Benefits

These filters thrive in everyday scenarios: seasonal pollen control, pet hair management, or post-renovation cleanup. By upgrading to MERV 12, you'll notice cleaner vents, fewer repairs, and better thermostat accuracy. They're a smart addition to any Building Supplies routine, especially within Tools & Home Improvement.

Pro tip: Change filters every 3 months or sooner in high-use homes to maximize benefits. NordicPure's quality construction ensures longevity, often outlasting generic options.

Frequently Asked Questions

What makes NordicPure filters better than competitors?

NordicPure excels in precise sizing for Honeywell/Lennox and consistent MERV 12 performance, often outperforming budget brands in airflow retention. Versus options like AprilAire, they offer great value without sacrificing quality.

How do I know which size to choose?

Measure your current filter's actual dimensions. Opt for 16x25x5 for smaller furnaces; 20x25x5 for larger ones. Both fit snugly as direct replacements.

What's the warranty on these filters?

NordicPure provides a satisfaction guarantee—contact their support for replacements if filters don't fit or perform as expected.

Are these filters compatible with my HVAC system?

Designed specifically for Honeywell and Lennox, but verify dimensions. They're not universal; consult your model's specs.

How often should I replace NordicPure furnace filters?

Every 3 months for optimal performance, or monthly in dusty or pet-heavy homes to maintain air quality and efficiency.