null

Furnace & HVAC Filters

Furnace & HVAC Filters

Shop furnace and HVAC replacement filters for residential and light-commercial heating and cooling systems. Furnace Part Source carries standard and high-efficiency filters by size, MERV rating, and equipment model to help support airflow and indoor air quality.

Use the product list below to find the correct filter by dimensions, MERV rating, or equipment model. Always confirm filter size and airflow direction before ordering to help ensure proper fit and performance.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Furnace part souls images
    Add to Cart
    Quick view

    Carrier 317659-403 Filter 20x21.5x1

    Carrier

    MSRP: $70.69
    Now: $54.62
    Carrier 317659-403  Filter 20x21.5x1 Item is Non Cancelable / Non Returnable FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts -...
    MSRP: $70.69
    Now: $54.62
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $70.69
    Now: $54.62
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Carrier 317659-402 Filter 16.5x21.5x1

    Carrier

    MSRP: $61.81
    Now: $47.76
    Carrier 317659-402 Filter 16.5x21.5x1 Item is Non Cancelable / Non Returnable FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts -...
    MSRP: $61.81
    Now: $47.76
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $61.81
    Now: $47.76
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Carrier 317659-401 Filter

    Carrier

    MSRP: $113.07
    Now: $87.38
    Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $113.07
    Now: $87.38
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $113.07
    Now: $87.38
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Carrier 30GX502820 Oil Filter

    Carrier

    MSRP: $887.65
    Now: $672.46
    Oil Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $887.65
    Now: $672.46
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $887.65
    Now: $672.46
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Carrier 227833-003 Charcoal Filter

    Carrier

    MSRP: $50.16
    Now: $38.00
    Charcoal Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $50.16
    Now: $38.00
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $50.16
    Now: $38.00
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Carrier 123324-008 16x25 Pre-Filter

    Carrier

    MSRP: $64.53
    Now: $48.89
    16x25 Pre-Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $64.53
    Now: $48.89
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $64.53
    Now: $48.89
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Carrier 123324-005 16X12 Pre-Filter

    Carrier

    MSRP: $250.90
    Now: $193.88
    16X12 Pre-Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $250.90
    Now: $193.88
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $250.90
    Now: $193.88
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Carrier 05HG660020 Oil Filter

    Carrier

    MSRP: $738.13
    Now: $570.37
    Carrier 05HG660020 Oil Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $738.13
    Now: $570.37
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $738.13
    Now: $570.37
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane FLR7962 5" ExPandable Air Filter

    Trane

    MSRP: $51.41
    Now: $39.73
    5" ExPandable Air Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $51.41
    Now: $39.73
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $51.41
    Now: $39.73
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane FLR6454 (comes 2 in a pack) Collection Cells

    Trane

    MSRP: $664.21
    Now: $513.25
    Trane FLR6454 (comes 2 in a pack) Collection Cells   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...
    MSRP: $664.21
    Now: $513.25
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $664.21
    Now: $513.25
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane FLR6453 IFD Filter;2Pk Collection Cell

    Trane

    MSRP: $565.83
    Now: $437.24
    IFD Filter;2Pk Collection Cell   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $565.83
    Now: $437.24
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $565.83
    Now: $437.24
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane FLR1882 In Line Disposable Filter

    Trane

    MSRP: $66.49
    Now: $51.38
    In Line Disposable Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $66.49
    Now: $51.38
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $66.49
    Now: $51.38
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane FLR1592 8" 3Micron Spin-On Oil Filter

    Trane

    MSRP: $169.72
    Now: $131.15
    Trane FLR1592  8" 3Micron Spin-On Oil Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...
    MSRP: $169.72
    Now: $131.15
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $169.72
    Now: $131.15
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane FLR0928 5.5" 3Micron Spin-On Oil Filter

    Trane

    MSRP: $183.12
    Now: $141.50
    5.5" 3Micron Spin-On Oil Filter   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $183.12
    Now: $141.50
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $183.12
    Now: $141.50
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane FLR0779 Oil/Refrigerant Filter Element

    Trane

    MSRP: $315.50
    Now: $243.79
    Oil/Refrigerant Filter Element   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $315.50
    Now: $243.79
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $315.50
    Now: $243.79
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Quick view

    Trane ELM1405 Oil/Refrigerant Filter Element

    Trane

    MSRP: $460.81
    Now: $356.08
    Oil/Refrigerant Filter Element   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $460.81
    Now: $356.08
    Quick view
    Qty in Cart: 0
    Price:
    MSRP: $460.81
    Now: $356.08
    Subtotal:
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane ELM1042 Hydraulic Oil Filter Element

    Trane

    MSRP: $530.97
    Now: $410.29
    Hydraulic Oil Filter Element  *** OBSOLETE  ***   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements...
    MSRP: $530.97
    Now: $410.29
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $530.97
    Now: $410.29
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane DHY1474 Purge Drier Filter

    Trane

    MSRP: $253.92
    Now: $196.21
    Trane DHY1474   Purge Drier Filter Item is Non Cancelable / Non Returnable FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts -...
    MSRP: $253.92
    Now: $196.21
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $253.92
    Now: $196.21
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane DHY1473 Liquid Line Filter Drier 1/2"

    Trane

    MSRP: $36.73
    Now: $28.38
    Liquid Line Filter Drier 1/2"   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $36.73
    Now: $28.38
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $36.73
    Now: $28.38
    Subtotal:
    Add to Cart
  • Furnace part souls images
    Add to Cart
    Quick view

    Trane DHY1470 5/8x1/2 16 CuIn Filter Drier

    Trane

    MSRP: $41.32
    Now: $31.93
    5/8x1/2 16 CuIn Filter Drier   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $41.32
    Now: $31.93
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $41.32
    Now: $31.93
    Subtotal:
    Add to Cart
  • Total: items /

Adding your products to cart

View Cart Continue Shopping

Furnace & HVAC Filters

Air filters remove dust, debris, and particulates from the air moving through a furnace or HVAC system, protecting internal components while supporting indoor air quality. A clogged or incorrectly sized filter can restrict airflow and reduce system efficiency.

Furnace Part Source carries a selection of furnace and HVAC filters in standard sizes and MERV ratings for residential and light-commercial equipment.

Common Filter Types We Carry

Common filter options include:

  • Standard pleated filters for everyday dust and debris capture.
  • Higher MERV-rated filters for improved filtration of finer particles.
  • Equipment-specific filters sized for particular furnace or air handler models.

How to Find the Right Filter

Before ordering, confirm the exact filter dimensions (length, width, and depth) either from the existing filter or the equipment's filter slot. Also check the recommended MERV rating for your system, since some HVAC equipment has airflow limitations that restrict how high a MERV rating can be used.

For best fit, compare:

  • Filter dimensions (length x width x depth)
  • MERV rating
  • Airflow direction arrow on the filter frame
  • Equipment model, if using an OEM-specific filter

Replacing Your Furnace or HVAC Filter

Regular filter replacement helps maintain airflow, protect the blower motor, and support consistent indoor air quality. Check filters monthly and replace them according to the manufacturer's recommended schedule or sooner if visibly dirty.

Need Help Choosing a Filter?

Not sure which filter size or MERV rating you need? Check the existing filter or the filter slot in your equipment, or contact Furnace Part Source for help identifying the correct replacement.

HVAC Filter FAQs

How often should I change my furnace filter?

Most furnace filters should be checked monthly and replaced every one to three months, depending on usage, filter type, and household conditions such as pets or allergies.

What does MERV rating mean?

MERV (Minimum Efficiency Reporting Value) measures how effectively a filter captures particles. Higher MERV ratings capture smaller particles but may increase airflow resistance, so confirm your system supports the rating you choose.

Can a dirty filter damage my furnace?

Yes. A clogged filter restricts airflow, which can cause the system to overheat, reduce efficiency, and place added strain on the blower motor and heat exchanger.

Which way does the airflow arrow on a filter go?

The airflow arrow should point in the direction air travels through the system, typically toward the blower or air handler. Installing a filter backward can reduce filtration efficiency.