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MERV 4 Polyester Air Filter 20" x 21" x 1" High Dust Holding Capacity

Item #:20X21X1PF 
Manufacturer Item: 5039451369
Manufacturer: AIR FILTERS
Clarcor Air Filtration 20X21X1PF Air Filter Air Filter Pleated
20X21X1PF
How often do I need to change my air filter?
  • There are many factors that can determine when an air filter should be changed. How often the HVAC unit runs, air quality, humidity and other factors can vary greatly from application to application. For most 1, 2 and 4 deep panel or pleated style filters, it is usually recommended to change the filter every 2-3 months. In many commercial and industrial applications static pressure can be monitored and the filters can be changed when they reach their recommended final resistance in inches of water gauge.
  • What is MERV?
  • MERV stands for: Minimum Efficiency Reporting Value. MERV is part of the ASHRAE 52.2 Test Standard that determines the ability of an air filter to remove particles of a specific size from an air stream. Air filters can have a MERV of 1 to 16; the higher the MERV, the more efficient the filter is at capturing particles.

    • All Air Filters

    Brand Name
    Parker Hannifin
    Air Filter Type
    Pleated Air Filter
    Thickness
    1"
    Merv
    MERV 4
    Length
    20"
    Width
    21"
    20X21X1PF
    MERV 4 Polyester Air Filter 20" x 21" x 1" High Dust Holding Capacity
    Quantity: