G4 Cardboard Frame Panel Filter Pre Filter for for Air Conditioning System
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Product Highlights
- Customizable Dimensions: Available in various sizes (e.g., 12x24, 20x20) and die-cut shapes per requirements.
- Durable Cardboard Frame: High-strength cardboard structure resistant to deformation with paper edge frames.
- V-Shaped Pleated Design: Expands contact area for high dust-holding capacity and low resistance.
- Versatile Media Options: Made from non-woven fabric, fiberglass, or imported synthetic fibers.
- ISO9001 & EN779 Certified: Meets international quality standards for air purification and filtration.
- Eco-Friendly & Recyclable: Paper edge frames and synthetic fiber materials are easy to recycle.
Product Attributes
- Customization
- Available
- Clapboard
- without Clapboard
- Filter Number
- 1
- Model NO.
- YF-APFP3
- Medium Material
- Synthetic Fiber
- Efficiency
- G4
- Filtration Grade
- Pre Filter
- Type
- Panel Filter
- Warranty
- 3 Months
- Customized
- Yes
- Maximum Temperature
- 80℃
- Maximum Relative Humidity
- 99%
- Transport Package
- Wooden Case
- Specification
- 24*24*2/595*595*46
- Trademark
- Yufan
- Origin
- China
- Production Capacity
- 100000PCS/Year
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of G4 Cardboard Frame Panel Filter Pre Filter for for Air Conditioning System
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Product Description
G4 Cardboard Frame Panel Filter Pre Filter for for Air Conditioning System
It belongs to the primary filter category, mainly used for the primary filtration of air intake.
The filter element is V-shaped folded on high-strength cardboard to expand the contact area with the air, ensuring the delivery of clean air smoothly and evenly.
The outer frame uses paper edge frames (white cardboard/die-cut cardboard or other high-strength cut cardboard), and the filter element is made of pleated fiber filter material combined with metal wire mesh to ensure the product's durability. The filter material can be made from non-woven fabric, fiberglass, and imported synthetic fibers according to customer requirements to maintain a higher cost-effectiveness.
| Nominal Size inches |
Actual Size mm |
Rated Airflow m/s |
Initial Pressure Pa |
Final Pressure Pa |
AVerage arrestance % | Filter Object um |
Filtration class |
| 12*24*2 | 295*595*46 | 1600 | <40 | ≤250 | 95 | ≥5 | G4 |
| 20*20*2 | 495*495*46 | 2200 | <40 | ≤250 | 95 | ≥5 | G4 |
| 20*24*2 | 495*595*46 | 2700 | <40 | ≤250 | 95 | ≥5 | G4 |
| 24*24*2 | 595*595*46 | 3200 | <40 | ≤250 | 95 | ≥5 | G4 |
High-strength cardboard, resistant to deformation
Low resistance, high dust-holding capacity, paper edge frames, easy to recycle
High precision in specifications, aesthetically pleasing, cost-effective, can be die-cut into various sizes.
| Frame | Cardboard |
| Media | Polyester synthetic fiber |
| Structure | Panel /Pleated |
| Dimension | According to customers' requirements |
| Maximum temperature | 80ºC |
| Maximum relative humidity | ≤99% |
| Fiber class according to EN779 | G4 ( particles ≥ 5microns ) |
| Certification | ISO9001, En779 |
| Filter Efficiency | 80-95% (Arrestance) |
Free workshop, with its own primary, medium and efficient production workshop, and its own warehouse, standard size stock storage


APPLIATION:
Pre-filtration for air cleanliness in food and pharmaceutical spraying workshops, air purification for constant temperature and humidity air conditioning fresh air units, and laminar flow purification operating rooms' centralized ventilation systems.
Our Mission:
At AILIN or YIFAN, our mission is to deliver the highest quality products at the most competitive prices, ensuring an unparalleled customer experience with a win-win approach.
Getting to Our Factory:
• By High-Speed Rail: To Zhengzhou (Trading company by Ailin) or Xinxiang (Manufacturing company by Yifan) in Henan province.
• By Airplane: To Zhengzhou Xinzheng International Airport in Henan province.
G-level pre-filters, F-level medium bag/pocket filters, H-level HEPA filters, and U-level ULPA filters, as well as various types of high-temperature air filters, oil filters, and water filters.
Our products are SGS and ISO9001 certified and have been exported to Europe, North America, Southeast Asia, Africa, and other regions. Our commitment to quality and after-sales service has earned us a strong reputation in the machinery industry.

WHY CHOOSE US ?
We really hope that customers can ask more questions, and then help customers solve all aspects of the problem1. We use the highest quality raw materials to ensure the durability and reliability of our product.
2. Our design team continuously searches market demands to provide you with unique and practical designs.
3. We ensure competitive prices while maintain high quality for your satisfication
4. We value your needs and strive to ensure prompt delivery of our products to your hands.
5. We offer customization services to meet your unique requirements and preference.
6. Our team posenses extensive industry experience ready to provide you with professional advice and support.
Q1: Are you a factory or trading company?
A1: We are factory with rich experience in China, and our company has established since 2007.
Q2: Can the product be customized?
A2: Yes, both the product and the packaging can be customized.
Q3: Do you provide samples?
A3: Yes, free sample can be provided but customer needs to pay for the shipping costs.
Q4: How to pay?
Our company accepts various ways of payment, such as T/T , L/C etc.
Q5: How long is the delivery time?
A5: It depends on the order quantity. Usually it takes about 15 to 30 working days after receiving your deposit.
Q6: Do you arrange the shipment?
A6: Yes, our company can arrange the shipment to deliver the goods according to the client's customer's requirements.
Q7: What about the after-sales service?
A7:Our company is responsible for the supplied product ONLINE
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI2591367". Items marked "" are certified.
Company Profile
Established in 2007, Zhengzhou Ailin Technology Co., Ltd (also known as Henan Yifan Filter Co., Ltd) specializes in the manufacturing of high-quality air purification and filtration products with a global reach. Our company spans over 3000 square meters and employs 50 staff members, including 11 research technicians.
Our advantages:
1. As a filter manufacturer, customization is a key focus of our services.
2. By owning our production facilities, we can better control production costs and offer greater cost-effectiveness to enhance the competitiveness of our customers' products.
3. With a robust R&D team and state-of-the-art facilities, we ensure top-quality products and timely delivery, while providing innovative solutions tailored to market demands.
Our main products include:
G-level filters, F-level medium filters, H-level HEPA filters, and U-level ULPA filters, as well as various types of high-temperature air filters, oil filters, and water filters.
• G-level filters: As pre-filters, these vary based on raw material and structure, including cardboard frame foldaway filters, aluminum panel/pleated filters, stainless steel filters, metal filters, activated carbon filters, fiberglass filters, etc.
• F-level Medium Filters: These medium-efficiency pocket filters come in five types: F5, F6, F7, F8, and F9, while the main materials are aluminum alloy or stainless steel frames and non-woven filter bags.
• HEPA Filters: These high-efficiency air filters (also known as Box Filters) can serve as terminal air filters.
Available in various frames such as aluminum, stainless steel, galvanized steel, wooden, and with superfine glass fiber filter paper.
• Oil Filters: It mainly includes oil filtration, oil and gas separation, cold coal filtration, 48/100 standard series filter barrel, refrigeration filter, air compressor three filters, hydraulic oil filter
• Water Filters:
Large flow water filter, kitchen sewer filter, reverse osmosis membrane filter, pre-drain filter, candle filter, candle filter.
Our products are SGS and ISO9001 certified and have been exported to Europe, North America, Southeast Asia, Africa, and other regions. Our commitment to quality and after-sales service has earned us a strong reputation in the machinery industry.
Our Mission:
At AILIN or YIFAN, our mission is to deliver the highest quality products at the most competitive prices, ensuring an unparalleled customer experience with a win-win approach.
Getting to Our Factory:
• By High-Speed Rail: To Zhengzhou (Trading company by Ailin) or Xinxiang (Manufacturing company by Yifan) in Henan province.
• By Airplane: To Zhengzhou Xinzheng International Airport in Henan province.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory
- Address
- 607, Building B, Zhengshang International Building, Putian West Road, Guancheng District, Zhengzhou, Henan Province
-
Plant Area
- 4138.46 square meters
-
Number of Employees
- 20
-
Registered Capital
- 100,000 RMB
-
Terms of Payment
- T/T, LC, PayPal
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays, one month
Off Season Lead Time: within 15 workdays, one month -
Nearest Port
- Qingdao Port, Tianjin Port, Shanghai Port
-
Minimum Order Quantity
- 10 PCS
-
Supply Chain Partners
- 15
Our Production Capability & Technical Expertise
-
Main Products
- G-Level Filters, F-Level Medium Filters, HEPA Filters, Water Filters, Oil Filters
-
Production Lines
- 5
-
Production Machines
- Cutting machine, Cutting and trimming integrated machine, Compound machine, Folding machine, Glue injection machine, Straightening machine, Pressing machine, Spot welding machine, Cotton cutting machine
-
QA/QC inspectors
- 2 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instruction but no written records
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2023-10-19
-
Export Year
- 2 Years
-
Main Markets
- Domestic
-
Repeat Buyers Choice
- < 10%
-
Number of Foreign Trading Staff
- 2
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Are you a factory or trading company?
- We are factory with rich experience in China, and our company has established since 2007.
- Can the product be customized?
- Yes, both the product and the packaging can be customized.
- Do you provide samples?
- Yes, free sample can be provided but customer needs to pay for the shipping costs.
- How to pay?
- Our company accepts various ways of payment, such as T/T , L/C etc.
- How long is the delivery time?
- It depends on the order quantity. Usually it takes about 15 to 30 working days after receiving your deposit.
- Do you arrange the shipment?
- Yes, our company can arrange the shipment to deliver the goods according to the client's customer's requirements.
- What about the after-sales service?
- Our company is responsible for the supplied product ONLINE
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