Contact Platform Support
Help Center
Home > Light Industry & Daily Use > Kitchen Implements > Strainer > Polyester Flange-clamp Air Filter, 20x25x4 Inch, 500 FPM Rated, 2-year Warranty, Free Technical Support for Installation
Polyester Flange-clamp Air Filter, 20x25x4 Inch, 500 FPM Rated, 2-year Warranty, Free Technical Support for Installation
Product Spotlights
High-quality polyester media with flange-clamp frame for easy installation; rated 500 FPM; 20x25x4 inch standard size; 2-year warranty and free technical support from a trusted manufacturer since 1998.
US$ 1
1 - 9 Unit
US$ 0.9
10 - 99 Unit
US$ 0.8
≥100 Unit
Key Specifications
Get Latest Price
Material:
Other, Polyester
Type:
Other, Flange-clamp
Color:
Other, White (customizable)
Payment & Shipping
Payment Methods:
Port of Shipment:
tianjin shanghai qingdao
Delivery Detail:
1 days
Related Products
-
Polyester Flange-clamp Air Filter, 16x20x1 Inch, 1-inch Frame, 125°F Continuous, Standard Compliant for Industrial Ventilation SystemsUS$ 0.8 - 1MOQ: 1 Unit -
Polyester Flange-clamp Air Filter for Paint Booths, 99.97% Efficiency on 0.3 Micron Particles, Standard 24x24x2 InchUS$ 0.8 - 1MOQ: 1 Unit
-
Polyester Flange-clamp Air Filter With 304 Stainless Steel Frame, MERV 13 Rated for 2000 CFM Commercial HVAC SystemsUS$ 0.8 - 1MOQ: 1 Unit
-
Polyester Flange-clamp Air Filter, 10x20x1 Inch, 1-inch Thick, 800 FPM Velocity, Ideal for HVAC Return Air ApplicationsUS$ 0.8 - 1MOQ: 1 Unit
-
Polyester Flange-clamp Air Filter, 2-inch Thick, 95% Efficiency at 1 Micron for Dust Collection in Welding ShopsUS$ 0.8 - 1MOQ: 1 Unit
Material
Other, Polyester
Type
Other, Flange-clamp
Color
Other, White (customizable)
size
20x25x4 inch
rated_airflow
500 FPM
application
HVAC systems, air handling units
warranty
2 years
installation_support
Free technical support
Product Overview
Anping County Boli Hardware Wiremesh Products Factory, established in 1998, is a trusted manufacturer specializing in high-quality filtration solutions. Our Polyester flange-clamp air filter, 20x25x4 inch, 500 FPM rated combines durable polyester media with a robust flange-clamp design, ensuring easy installation and reliable performance in commercial and industrial HVAC systems. With a 2-year warranty and free technical support for installation, this filter delivers exceptional value and long-term peace of mind.
Key Features & Benefits
- High-Performance Polyester Media: The synthetic polyester material offers high dust-holding capacity and low resistance, maintaining efficient airflow while capturing particles as small as 10 microns. Ideal for pre-filtration or general ventilation.
- Flange-Clamp Frame Design: The rigid frame with integrated flange and clamp allows tool-free, secure mounting in standard filter racks. This design minimizes air bypass and simplifies replacement, reducing downtime during maintenance.
- Rated for 500 FPM (2.54 m/s): Engineered for nominal face velocity of 500 feet per minute, this filter operates optimally in most HVAC systems. The media is pleated to maximize surface area, ensuring consistent performance across the rated airflow.
- Standard Size: 20x25x4 inches: Fits standard 20x25 inch filter slots with 4-inch depth. Compatible with most residential and commercial air handlers, furnaces, and rooftop units.
- 2-Year Warranty: We back this filter with a comprehensive 2-year warranty against defects in materials and workmanship. This reflects our confidence in product durability and quality.
- Free Technical Support for Installation: Our team provides installation guidance via phone or email. Whether you are replacing an old filter or designing a new system, we help you achieve optimal performance.
Technical Specifications
| Parameter | Value |
| Media Material | Polyester (non-woven) |
| Frame Material | Galvanized steel with flange-clamp |
| Dimensions (W x H x D) | 20 x 25 x 4 inches (508 x 635 x 102 mm) |
| Rated Face Velocity | 500 FPM (2.54 m/s) |
| Initial Pressure Drop | 0.25 in w.g. (typical at 500 FPM) |
| Pleat Height | 0.5 – 1.0 inch (pleated design) |
| Operating Temperature | Up to 150°F (65°C) |
| Filter Efficiency | Up to 60% on particles >5 µm (MERV 8 equivalent, typical) |
Why Choose Our Filter?
- Durability: Polyester media resists moisture and mold growth, extending service life even in humid environments.
- Cost-Effective: High dust-holding capacity reduces replacement frequency, lowering total cost of ownership.
- Easy Maintenance: The flange-clamp design allows quick swap-out without tools, saving labor time.
- Versatile Application: Suitable for commercial buildings, schools, hospitals, retail stores, and light industrial facilities.
Frequently Asked Questions (FAQ)
- Q: What is the filter efficiency rating? A: This filter typically achieves MERV 8 efficiency, capturing particles down to 5 microns. For specific application requirements, please contact us for test data.
- Q: Can I use this filter in a residential furnace? A: Yes, if your furnace accepts a 20x25x4 inch filter. The 500 FPM rating suits most residential HVAC systems. Check your system's airflow specifications.
- Q: How often should I replace the filter? A: Replacement interval depends on operating conditions. Typically every 3-6 months for commercial use, or when pressure drop exceeds recommended levels. The 2-year warranty covers defects, not normal wear.
- Q: Is the flange-clamp frame compatible with side-access filter housings? A: Yes, the flange-clamp design is intended for side-access or front-access housings with standard track rails. The flange provides a secure seal.
- Q: What is the maximum airflow rate? A: The filter is rated for 500 FPM face velocity. Higher velocities may increase pressure drop and reduce efficiency. We recommend staying within 300-600 FPM range.
- Q: Does the filter come with a gasket? A: The flange itself acts as a sealing surface. Optional foam gaskets are available upon request for enhanced sealing.
- Q: How is the filter packaged? A: Each filter is individually wrapped in poly bags and packed in sturdy cartons to prevent damage during shipping. Custom packaging is available for bulk orders.
- Q: What is the warranty coverage? A: The 2-year warranty covers manufacturing defects under normal use. Please contact our technical support for warranty claims or installation assistance.
Trust & Reliability
With over 25 years of manufacturing experience (since 1998), Anping County Boli Hardware Wiremesh Products Factory has established a strong reputation in the global filtration market. Our annual export value exceeds US$5 million, serving markets across North America, Europe, Southeast Asia, and Africa. We ship from major Chinese ports (Tianjin, Qingdao, Shanghai, etc.) and offer flexible logistics options. Our team provides free technical support for installation, ensuring you get the most out of our product. Choose our polyester flange-clamp air filter for reliable performance, long service life, and peace of mind. Contact us today for a quote or to discuss your custom requirements.
Send Inquiry to This Supplier
Mr. Geng Xiaozhong
Sales Manager
2Yrs
Hengshui, Hebei, China
2Yrs
Business Type
Manufacturer
Year Established
1998
Annual Export Value
US$5 Million - US$10 Million
Port of Shipment
Tianjin, Qingdao, qingdao, shanghai, foshan
You May Also Like
-
Polyester Flange-clamp Air Filter, 4-inch Depth, 2500 CFM Capacity, With Aluminum Mesh Backing for Extended Service LifeUS$ 0.8 - 1MOQ: 1 Unit
-
Polyester Flange-clamp Air Filter, 12x24x2 Inch, 150 Pa Pressure Drop, for Pharmaceutical Cleanroom Make-up Air UnitsUS$ 0.8 - 1MOQ: 1 Unit
-
Polyester Flange-Clamp Air Filter 100% Synthetic Fiber 500g/m2 WeightUS$ 2.8 - 3MOQ: 1 Unit
-
304 Stainless Steel Polyester Flange-Clamp Air Filter 20 Micron 200°CUS$ 2.8 - 3MOQ: 1 Unit
-
Polyester Flange-Clamp Air Filter for HVAC System G3/G4 Pre-FilterUS$ 2.8 - 3MOQ: 1 Unit
-
Polyester Flange-Clamp Air Filter Used in Pharmaceutical Workshop HEPA Pre-FilterUS$ 2.8 - 3MOQ: 1 Unit
-
Polyester Flange-Clamp Air Filter for Dust Collector 1-10 Micron EfficiencyUS$ 2.8 - 3MOQ: 1 Unit
-
Flange-Clamp Polyester Air Filter 2.0mm Thickness 30Pa Initial ResistanceUS$ 2.8 - 3MOQ: 1 Unit
-
Polyester Flange-Clamp Air Filter With 1 Year Warranty and Mill Test ReportUS$ 2.8 - 3MOQ: 1 Unit
-
Polyester Flange-Clamp Air Filter Standard Compliant ISO 16890 TestedUS$ 2.8 - 3MOQ: 1 Unit
