20 Inch Pre Filter – Industrial-Grade Air Filtration for Demanding Applications
Our 20-inch pre-filter is specifically designed for HVAC systems in commercial and industrial...
Pre Filter
HVAC Pre Filters (G1–G4 / MERV 6–8) for AHU & Projects | ZOSLONG Factory
Primary HVAC pre filters for AHU/RTU/MAU projects. Washable mesh, panel and pleated prefilters with custom sizes, low pressure drop options, and OEM support. Get a fast RFQ.
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Our Best-Selling Pre Filter Types
Washable Air Filter
Washable air filters can be rinsed with water or vacuumed to remove any particle buildup. Washable air filters are typically made out of woven polypropylene media and are electrostatically charged in order to capture more particles.
Panel Filter
Panel filters are a type of filter used in HVAC (heating, ventilation & air conditioning) systems. They're installed in a panel near the blower unit and work to remove dust and other debris from the air before it is circulated through the building's ductwork system.
Pleated Filter
Pleated filters are made from pleated cloth or paper that is pleated or folded in a series of small pleats, which help to increase the filter's surface area and capture more particles. This type of filter is often used in air conditioning systems, air purifiers, and other indoor air quality devices.
Why Choose Us
Advanced Equipment
We are equipped with clean room production lines, advanced R&D centers and precision testing equipment.
Professional Team
We have formed an experienced and skilled professional team to ensure that our products and services always maintain the leading level in the industry.
Patent Certificate
We have successfully obtained ISO 9001:2015 quality management system certification and comply with ISO 9001 standards, EN 779:2012 regulations and CE marking requirements.
Quality Control
We implement strict control on product quality to ensure that each product meets high quality requirements.
Pre Filter Technical Parameters
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Size : |
610 x 610 x 50/100 / 150 mm |
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Type : |
Box / Flange Type |
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Filtr. Level : |
90% Down to 10 Micron |
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Initial Pressure Drop : |
3 mm of W.G. |
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Final Pressure Drop : |
15 / 20 mm of W.G. |
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Frame : |
G.I. / Cardboard |
|
Media : |
HDPE / Synthetic Fibre |
Pre Filter Advantages
Lower pressure drop
Easy to install in wide range of HVAC systems
High moisture resistant
Cost saving with lower energy consumption
Environment friendly
To extend life span on final filtration
Common Materials Used for Pre Filter
Polyester:
Provides good filtration.
01
Fiberglass:
Durable material with reasonable efficiency for the price.
02
Foam:
Can trap large particles, some models are washable and reusable.
03
Mesh screens:
Allows high airflow while catching large debris.
04
Pleated filters:
Offer more surface area for higher particle capture than flat filters.
05
The Role of Pre Filter
Protect the main filters:
By trapping hair, dust and other large particles, pre-filters help maintain airflow through the system and prevent clogging of the HEPA, activated carbon and other filters.
Improve air quality:
Pre-filters do capture many large airborne particles that can irritate allergies and asthma. While they allow smaller particles like smoke and pollen to pass through, pre-filters still contribute to cleaning indoor air.
Applications of Pre Filter
HVAC systems:
To protect expensive HEPA filters or other fine filters in commercial and residential settings.
Air purifiers:
To extend the lifespan of the main filter by catching larger particles.
Vacuum cleaners:
To prevent larger debris from clogging the vacuum’s motor.
Our service
Pre-sales Service:
Needs Analysis:
Communicate to understand customer requirements and goals.
01
Product Consultation:
Provide product details for customers to choose suitable options.
02
Solution Design:
Create personalized solutions based on needs.
03
Cost Estimation:
Offer transparent cost estimates and quotations.
04
Sample Provision:
Provide samples for customer testing when needed.
05
During Sales Service:
Order Tracking:
Ensure timely and accurate order processing with status updates.
Production Supervision:
Monitor production to ensure quality standards are met.
Logistics Coordination:
Arrange logistics for on-time and safe delivery.
Technical Support:
Offer support for installation and configuration questions.
After-sales Service:
Installation Guidance:
Provide professional installation guidance.
Operational Training:
Train customers to skillfully use products.
Maintenance Services:
Regularly offer maintenance and inspection services.
Fault Response:
Respond quickly to malfunctions with solutions or on-site services.
Spare Parts Supply:
Provide necessary spare parts for continuous operation.
Customer Feedback:
Collect feedback to improve products and services.
Packaging and Delivery
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Packaging |
Anti-corrosion film + reinforced wooden crates |
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Delivery |
DDP/DAP options with real-time tracking |
Our Certificate
FAQ
We're professional pre filter manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized pre filter from our factory.
activated charcoal filter bags, Disposable Panel Filters