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    95 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.

    Low-Efficiency Reusable Air Filter Media

    Wash and reuse this media to extend the life of expensive filters that catch fine particles. Installed upstream, this affordable media traps debris that can damage or clog your final filter. Cut it to the size you need and attach it to a frame.
    Polyurethane Foam Rolls
    Image of Product. Front orientation. Air Filter Media. Low-Efficiency Reusable Air Filter Media, Rolls.
    Pores per Inch—Media containing more pores per inch catch smaller particles than media with fewer pores per inch.
    Wd.
    MERV Filter
    Rating
    Max. Temp.,
    ° F
    Specs.
    Met
    Choose a Number
    of Pores per Inch
    5 ft.
    Long
    10 ft.
    Long
    25 ft.
    Long
    1/8" Thick
    8"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    000000
    12"Not Rated200UL 900
    30
    ,
    60
    		00000000
    0000
    00000
    00000
    24"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    00000
    36"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    00000
    48"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    00000
     
    1/4" Thick
    8"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    00000
    12"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    00000
    24"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    00000
    36"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    000000
    48"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    000000
     
    1/2" Thick
    8"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    00000
    12"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    00000
    24"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    000000
    36"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    000000
    000000
    48"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    000000
    000000
     
    1" Thick
    8"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    000000
    12"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    00000
    000000
    24"Not Rated200UL 900
    30
    ,
    60
    		00000000
    00000
    000000
    000000
    36"Not Rated200UL 900
    30
    ,
    60
    		00000000
    000000
    000000
    000000
    48"Not Rated200UL 900
    30
    ,
    60
    		00000000
    000000
    000000
    000000
     
    Polyurethane Foam Pads
    Image of Product. Front orientation. Air Filter Media. Low-Efficiency Reusable Air Filter Media, Pads.
    Pores per Inch—Media containing more pores per inch catch smaller particles than media with fewer pores per inch.
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Max. Temp.,
    ° F
    Specs.
    Met
    Choose a Number of
    Pores per Inch
    Each
    1/8" Thick
    12 × 12Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    12 × 24Not Rated250UL 900
    30
    ,
    60
    		000000000000
    16 × 20Not Rated250UL 900
    30
    ,
    60
    		000000000000
    16 × 25Not Rated250UL 900
    30
    ,
    60
    		000000000000
    20 × 20Not Rated250UL 900
    30
    ,
    60
    		000000000000
    20 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    24 × 24Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		00000000000
     
    1/4" Thick
    12 × 12Not Rated250UL 900
    30
    ,
    60
    		000000000000
    12 × 24Not Rated250UL 900
    30
    ,
    60
    		000000000000
    16 × 20Not Rated250UL 900
    30
    ,
    60
    		000000000000
    16 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    20 × 20Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    20 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    24 × 24Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		00000000000
     
    1/2" Thick
    12 × 12Not Rated250UL 900
    30
    ,
    60
    		000000000000
    12 × 24Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    16 × 20Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    16 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    20 × 20Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    20 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    24 × 24Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		000000000000
     
    1" Thick
    12 × 12Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    12 × 24Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    16 × 20Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    16 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    20 × 20Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    20 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    24 × 24Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		000000000000
     
    2" Thick
    12 × 12Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    12 × 24Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    16 × 20Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    16 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    20 × 20Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    20 × 25Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    24 × 24Not Rated250UL 900
    30
    ,
    60
    		0000000000000
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		000000000000
     

    Low-Efficiency Reusable Air Filter Media Selector Packs

    Image of Product. Front orientation. Air Filter Media. Low-Efficiency Reusable Air Filter Media Selector Packs.
    Determine the right pores per inch for your air filtering application. Each sample piece has a different pore size.
    Pores per Inch—Media containing more pores per inch catch smaller particles than media with fewer pores per inch.
    Pores per In.
    Wd.
    Lg.
    Thk.
    MERV Filter
    Rating
    Specs.
    Met
    No. of
    Pieces
    Each
    20, 45, 65, 80, 1006"6"1/8"Not RatedUL 90050000000000000
    30, 603"3"1/4"Not RatedUL 900200000000000

    Reusable Air Filter Media for Electronics

    Image of Product. Front orientation. Air Filter Media. Reusable Air Filter Media for Electronics.
    Wash and reuse this media to keep the air in your electronics clean. It won't break down when exposed to prolonged heat and humidity. Cut it to the size you need.
    HVAC Filter
    Trade Size
    MERV Filter
    Rating
    Specs.
    Met
    1/4"
    Thick
    1/2"
    Thick
    1"
    Thick
    8 × 8Not RatedUL 90000000000
    00000
    00000
    00000
    10 × 10Not RatedUL 90000000000
    0000
    00000
    00000
    10 × 20Not RatedUL 90000000000
    00000
    00000
    00000
    14 × 14Not RatedUL 90000000000
    00000
    00000
    00000
    16 × 20Not RatedUL 90000000000
    00000
    00000
    00000
    16 × 25Not RatedUL 90000000000
    00000
    00000
    00000
    20 × 20Not RatedUL 90000000000
    00000
    00000
    00000
    20 × 25Not RatedUL 90000000000
    00000
    00000
    000000
    20 × 30Not RatedUL 90000000000
    00000
    00000
    000000
    24 × 24Not RatedUL 90000000000
    00000
    00000
    00000

    Reinforced Reusable Air Filter Media

    Image of Product. Front orientation. Air Filter Media. Reinforced Reusable Air Filter Media.
    Wrapped in aluminum mesh for added support, this filter media can be used without a frame. Just cut it to the size you need. When it gets dirty, wash and reuse it.
    5 ft. Long
    10 ft. Long
    25 ft. Long
    Wd.
    MERV Filter
    Rating
    Max. Temp.,
    ° F
    Specs.
    Met
    Each
    Each
    Each
    1/2" Thick
    15 1/8"4
    		250UL 900000000000000000000000000000000000000000
    19 1/8"4
    		250UL 900000000000000000000000000000000000000
    24 1/8"4
    		250UL 9000000000000000000000000000000000000000
     
    1" Thick
    15 1/8"4
    		250UL 900000000000000000000000000000000000000
    19 1/8"4
    		250UL 9000000000000000000000000000000000000000
    24 1/8"4
    		250UL 9000000000000000000000000000000000000000
     

    EMI/RFI Shielding Electrical Enclosure Vents

    Image of Product. Front orientation. Electrical Enclosure Vents. EMI/RFI Shielding Electrical Enclosure Vents.
    These conductive aluminum screens block electromagnetic interference (EMI) and radio frequency interference (RFI) to prevent electrical problems such as radio static and faulty signals. Made of mesh, they let air flow through, so the pressure in your enclosure stays constant as temperatures fluctuate.
    Screw through the vent frame to mount on the surface of your enclosure. A shielded foam gasket fills the gap between the enclosure and the vent.
    Interference Reduction @ Frequency—Also known as attenuation, interference reduction at frequency measures how much interference is blocked. These vents have high attenuation and work for most applications.
    For
    Opening
    Overall
    Mounting
    Holes
    Wd.
    Ht.
    Wd.
    Ht.
    Dp.
    Interference Reduction
    @ Freq.
    Frame Material
    Screen Material
    Gasket Material
    Mounting Fasteners
    Included
    No.
    of
    Dia.
    Each
    2"2"3"3"3/4"52 dB @ 1 GHzChromate-Conversion-Coated AluminumChromate-Conversion-Coated AluminumPolyurethane FoamNo41/4"00000000000000
    3"3"4"4"3/4"52 dB @ 1 GHzChromate-Conversion-Coated AluminumChromate-Conversion-Coated AluminumPolyurethane FoamNo41/4"0000000000000
    4"4"5"5"3/4"52 dB @ 1 GHzChromate-Conversion-Coated AluminumChromate-Conversion-Coated AluminumPolyurethane FoamNo61/4"0000000000000
    5"5"6"6"3/4"52 dB @ 1 GHzChromate-Conversion-Coated AluminumChromate-Conversion-Coated AluminumPolyurethane FoamNo81/4"0000000000000
    6"4"7"5"3/4"52 dB @ 1 GHzChromate-Conversion-Coated AluminumChromate-Conversion-Coated AluminumPolyurethane FoamNo61/4"0000000000000
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