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Carrier 317659-403 Air Filter 20" X 21.5" X 1"

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Special Price $61.68 Regular Price $70.94
In stock
SKU
317659-403
Carrier 317659-403 Air Filter 20" X 21.5" X 1" is an air filtration element designed to capture dust, lint, pollen and other airborne particles before they enter compatible heating and cooling equipment. Its layered filter media allow steady airflow while reducing the accumulation of contaminants on internal surfaces and operating unit. This filter creates a cleaner air path that supports efficient circulation throughout the equipment in HVAC systems. Regular filtration improved airflow, limits debris buildup on internal assemblies, and contributes to consistent equipment performance and indoor air quality.
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Carrier Humidifier Parts, Refrigeration & Cooling
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Manufacturer Name: Carrier
Product Number: 317659-403
OEM Part Number: 317659-403
Product Description: Filter 20X21.5X1
Weight:2.49lbs/1129.44g

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Product Questions (2)
Customer Questions
What maintenance is required for the Carrier 317659-403 Air Filter?

Inspect the air filter regularly for dust and debris buildup and replace it when visibly dirty or restricted. Ensure proper orientation during placed to maintain correct airflow direction. Keeping the filter clean assists protect HVAC components and maintain efficient airflow. Avoid running the system with a heavily clogged filter to reduce strain.

What are common issues with the Carrier 317659-403 Air Filter?

  • Dust and debris clogging restricting airflow.
  • Reduced HVAC efficiency due to blocked filter media.
  • Improper placed causing air bypass.
  • Frequent replacement needed in high-dust environments.
  • Increased system strain from neglected filter changes.

Installation Steps

Step 1: Turn off the HVAC system before opening the filter compartment.

Step 2: Locate the existing air filter slot near the return duct.

Step 3: Slide out the old filter and dispose of it properly.

Step 4: Check airflow direction arrow on the new filter.

Step 5: Insert the new filter with arrow pointing toward airflow.

Step 6: Close the panel securely, restore power, and check airflow.