McMaster-Carr logo
    Filter by
    Pores per Inch
    System of Measurement
    For Removing
    Construction
    Form
    Air Filter Performance
    DFARS Specialty Metals
    For Use With
    Reusable
    Specifications Met
    Application
    MERV Filter Rating
    Industrial Info Snippet
    Length
    Width
    Filtering Method
    Sold As
    Performance
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Maximum Temperature
    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)
    5 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 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
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		000000000000
     
    1/4" Thick
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		00000000000
     
    1/2" Thick
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		000000000000
     
    1" Thick
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		000000000000
     
    2" Thick
    48 × 72Not Rated250UL 900
    20
    ,
    45
    ,
    65
    ,
    80
    ,
    100
    		000000000000
     
    back to top