McMaster-Carr logo
    Filter by
    System of Measurement
    Thickness
    MERV Filter Rating
    Industrial Info Compare
    Filter Type
    Reusable
    Filter Efficiency @ 1 Microns
    Filter Efficiency
    Maximum Temperature
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Filtering Method
    Support Grill Material
    DFARS Specialty Metals
    Removes Particle Size Down To
    For Use With
    Specifications Met
    Filter Efficiency @ 3 Microns
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    32 Products
    About Air Filter Efficiency Ratings
    industrial info icon

    Compare MERV rating, efficiency, and particle size to find the right filter for your location—from warehouses and offices to hospitals and labs.

    Pleated Panel Air Filters

    Image of Product. Front orientation. Air Filters. Pleated Panel Air Filters.
    The most common HVAC replacement filters. Pleats create a large surface area to filter without reducing airflow. The cardboard frame is treated to resist humidity. The galvanized steel grill prevents sagging.
    Don’t see the size you need? Additional sizes are available here.
    Small Pack
    Large Pack
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Max. Temp.,
    ° F
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    1" Thick
    18 × 248
    		180UL 90022209K215000000122209K216000000
     
    2" Thick
    18 × 248
    		180UL 90022209K72500000122209K75500000
     
    4" Thick
    18 × 248
    		180UL 90022209K8140000062209K83400000
     

    Ultra-Efficiency Pleated Panel Air Filters

    Image of Product. Front orientation. Air Filters. Ultra-Efficiency Pleated Panel Air Filters.
    Capture more viruses and finer allergens than high-efficiency filters—these ultra-efficiency filters can even remove contaminants from wildfire smoke and pollution. They have pleats that create a large surface area for filtering without reducing airflow. The cardboard frame is treated to resist humidity, and the galvanized steel grill prevents sagging.
    While these ultra-efficiency filters may make your HVAC system work harder than lower efficiency filters, they’re still easier on your equipment than HEPA filters.
    Small Pack
    Large Pack
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Max. Temp.,
    ° F
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    1" Thick
    18 × 2413
    		150UL 90023881T129000000123881T1310000000
     
    2" Thick
    18 × 2413
    		150UL 90023881T16900000123881T171000000
     
    4" Thick
    18 × 2413
    		150UL 90023881T1920000063881T193000000
     

    Long-Life Reusable Mesh Panel Air Filters

    Image of Product. Front orientation. Air Filters. Long-Life Reusable Mesh Panel Air Filters.
    Last longer than standard reusable filters thanks to a thicker frame and additional mesh layers. The frame also stands up to high airflow without warping. When your filter gets dirty, just wash and reuse it.
    Don’t see the size you need? Additional sizes are available here.
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Frame
    Ga.
    Max. Temp.,
    ° F
    Specs.
    Met
    Each
    1" Thick
    18 × 244
    		18240UL 9002150K29000000
     
    2" Thick
    18 × 244
    		18240UL 9002150K39100000
     

    High-Efficiency Pleated Panel Air Filters

    Image of Product. Front orientation. Air Filters. High-Efficiency Pleated Panel Air Filters.
    Trap common allergens such as dander, mold spores, and pollen. These filters balance filtration efficiency and airflow, making them more cost-effective than higher-rated filters.
    Small Pack
    Large Pack
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Max. Temp.,
    ° F
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    1" Thick
    18 × 2411
    		150UL 90023881T46000000123881T70000000
     
    2" Thick
    18 × 2411
    		150UL 90023881T6600000123881T21000000
     
    4" Thick
    18 × 2411
    		150UL 90023881T2470000063881T248000000
     

    Panel Air Filters

    Image of Product. Front orientation. Air Filters. Panel Air Filters.
    Typically used as replacements in HVAC equipment, these panels work as standalone filters or as prefilters to your main filter. They are an affordable choice for protecting expensive filters that catch fine particles.
    Don’t see the size you need? Additional sizes are available here.
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Max. Temp.,
    ° F
    Certification
    Pkg.
    Qty.
    Pkg.
    1" Thick
    18 × 245
    		180UL Classified
    		122063K36000000
     
    2" Thick
    18 × 245
    		180UL Classified
    		122063K5900000
     

    Mildew-Resistant Pleated Panel Air Filters

    Image of Product. Front orientation. Air Filters. Mildew-Resistant Pleated Panel Air Filters.
    An antimicrobial compound inhibits mildew and mold from growing on your filter. Pleats create a large surface area for filtering without reducing airflow.
    Cannot Be Sold To—Product registration requirements restrict sales to the listed areas.
    Pkg. of 1
    Pkg. of 12
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Cannot Be
    Sold To
    Max. Temp.,
    ° F
    Specs.
    Met
    Pkg.
    Pkg.
    1" Thick
    18 × 248
    		Canada150UL 9002211K2460000002211K3460000000
     
    2" Thick
    18 × 248
    		Canada150UL 9002211K256000002211K356000000
     

    Panel Air Filter Frames

    Image of Product. Front orientation. Air Filter Frames. Panel Air Filter Frames.
    Image of Product. Replacement Clip. Front orientation. HVAC Filter Retaining Clips. Panel Air Filter Frames, For 2" Thick Filters.

    Replacement Clip

    Hold panel filters in place. The frames can be welded together to hold multiple filters. The trade size is the actual size of the frame.
    Frames
    Replacement Clips
    For HVAC Filter
    Trade Size
    Frame Material
    Frame
    Ga.
    Mounting Hardware
    Included
    Includes
    Each
    Pkg.
    Qty.
    Pkg.
    For 2" Thick Filters
    18 × 24Galvanized Steel16YesRetaining Clips, Sealing Gasket20615K102000000220615K8500000
     
    Clips
    Image of Product. For 1" and 4" Thick Filters. Front orientation. HVAC Filter Retaining Clips. Panel Air Filter Frames, For 1" Thick Filters.

    For 1" and 4"

    Thick Filters

    Clips—Add clips to attach frames to 1" or 4" filters.
    For Filter
    Thk.
    Finished
    Material
    Pkg.
    Qty.
    Pkg.
    1"Galvanized Steel220615K8600000
    4"Galvanized Steel220615K870000

    Odor-Removing Pleated Panel Air Filters

    Image of Product. Back orientation. Air Filters. Odor-Removing Pleated Panel Air Filters.
    Carbon granules absorb odors. Pleats create a large surface area to filter without reducing airflow. The cardboard frame won't warp because it is treated to resist humidity.
    Strong Odor Removing—Packed with 15 times more carbon than standard odor-removal air filters to eliminate heavy odors.
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Carbon Concentration,
    g/ft²
    Max. Temp.,
    ° F
    Specs.
    Met
    Each
    Strong-Odor-Removing Air Filters
     
    2" Thick
    18 × 247
    		300120UL 9004043T440000000
     

    Long-Life High-Efficiency Pleated Panel Air Filters

    Image of Product. Front orientation. Air Filters. Long-Life High-Efficiency Pleated Panel Air Filters.
    Tight pleats create a larger surface area than standard pleats for a longer life. These filters trap common allergens such as dander, mold spores, and pollen. High-efficiency filters also balance filtration efficiency and airflow, making them more cost-effective than higher-rated filters. Use them in data centers and other locations that require extra-clean air.
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Max. Temp.,
    ° F
    Each
    2" Thick
    18 × 2411
    		1755437N14000000
     
    back to top