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  • Welcome
  • Who We Are
    • About Us
    • Our Heritage
    • Code of Ethics
    • Our Team
  • Applications
    • Airports
    • Auditoriums
    • Body Shops
    • Cleanrooms
    • Food Packaging
    • Government Buildings
    • Hospitals
    • Indoor Gun Ranges
    • Manufacturing Facilities
    • Marijuana Dispensaries
    • Microelectronics
    • Office Buildings
    • Paint Booths
    • Schools & Universities
  • Our Products
    • Brands we carry
      • Air Defense
      • Filtration Group
      • Permatron
      • Research Products
      • Smith Filter
    • Products A-C
      • Antimicrobrial Treated Fitlers
      • Automatic Roll Filter Medias
      • Bag Filters
      • Box Filters
      • Cleanroom Products
      • Air Intake Filter Screens
      • Aluminum Filters
    • Products D-G
      • Direct Air Variplus AG
      • Exhaust Filters & NESHAP
      • Extended Surface Rigid Filters
      • Fan Guard Filters
      • Gas Phase Adsorbers
      • Grease Filters
    • Products H-L
      • Hail Guard Netting
      • Hardware & Holding Frames
      • HEPA and NEAR-HEPA Filters
      • High Dust
      • Holding Frames
      • HVAC & Intake Air
      • Internally Supported Filters
    • Products M-Q
      • Paint Arrestors
      • Paint Spray Booth Filters
      • Panel Air Filters
      • Panel Filters
      • Pleated Filters
      • Pocket Filters
    • Products R-Z
      • Replacement Filters
      • Replacement Filters For Turbomachinery Air Intake Systems
      • Replacement Filters For Residential Air Cleaners
      • Ring Panels, Self-Supported Pocket Filters & Polyester Media
      • Side Access Housing
      • Specialty Medias & Filters
      • Stainless Steel Filter
      • Ultra High Dust
      • V-Bank & Panel Minipleat Filters
    • View all products
  • Ordering Information, Links and Portal
    • New Customer Forms
    • Portal Login
    • Request Access to Portal
    • Place an Online Order
    • Custom Size Quote
    • Odd Sized & Custom Policy
  • Blog
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Filters

  • Size - 4" Remove filter
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Home Products 4" + Permatron

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