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Industrial pre G3 G4 cardboard or metal frame pleated or panel air filter for Air Conditioning Ventilation System


Industrial pre G3 G4 cardboard or metal frame pleated or panel air filter for Air Conditioning Ventilation System

The pre-filter is mainly used to filter dust particles above 5 μm, as the primary filtration of central air conditioning and centralized air supply system, plays the role of protecting the after end filter. The pre-filter usually has three styles: panel type, pleated type and pocket type, the frame material can be cardboard, aluminum, galvanized, etc., the filter material can be non-woven fabric, nylon mesh, activated carbon filter material, metal mesh, etc., and protective net can be double-side sprayed iron wire mesh and double-side galvanized wire mesh, filtration grade G1, G2, G3, G4,etc. .

The pre filter is made of high-efficiency and low-resistance non-woven material pleated with mesh, the frame can be aluminum frame, stainless steel frame or galvanized frame, high dust holding capacity, often used in the prefiltration of central air conditioning ventilation systems, semiconductor, pharmaceutical, food, electronics, hospital and other air conditioning systems.

    Product Properties

    1. Filter media--high efficiency low resistance fine filter media 

    2. Frame--aluminum frame, stainless steel frame or galvanized frame, with protective bar in the middle

    3. Efficiency--G2, G3, G4, etc

    4. Sturdy -metal structure

    5. Large air volume and low resistance

    6. Large air volume and low resistance

    photobank - 2024-01-12T102702irkphotobank (95)niz


    ● One-stop Service & solution for Fresh Air

    ● Engaged in air filtration research and development, production and sales for more than 15 years.

    ● Factory price for air filter materials and air filter products.

    ● OEM & ODM support, fast delivery.

    ● Basic cleanliness - a good choice for pre-filtration and intermediate filtration

    ● Damage resistance and durability - metal frame structure, high temperature resistance, washable

    ● Safe and environmentally friendly

    Main products

    Our products include industrial pre-filter, pocket/bag air filter, HEPA filter, V-bank filter, chemical air filter; household air purifier replacement HEPA, carbon air filter and combination air filter, cabin air filter, cleaner air filter, humidifier air filter as well as air filter materials such as pocket filter roll media, paint stop fiberglass media, ceiling filter media, coarse filter media, melt-blown fabric, air filter paper, etc.


    1.What kind of frame do you make for the primary air filter?
    The main frame we have for primary air filter is cardboard, galvanized, aluminum etc.
    2.Can the air filter element to be made pleated and flat/panel type?
    Yes. Both pleated and panel type air filter element can be made for primary air filter
    3.Can I have sample?
    Yes. Free samples can be provided while clients to pay the shipping charge.
    4.What’s the lead-time?
    Usually 2-3 weeks for 40HQ container q’ty. It depends on the filter size and q’ty, we can expedite the process if client need the goods urgently.


    Prefiltration of air conditioning systems such as semiconductor, pharmaceutical, food, electronics, hospitals, etc