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Help CenterCotton Wound Filter Element 20 Inch 1 Micron Precision for RO Pre-treatment 60 GPM
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Anping County Boli Hardware Wiremesh Products Factory, established in 1998, is a professional manufacturer specializing in filtration solutions. With an annual export value of US$5-10 million and serving markets across North America, South America, Europe, Asia, Africa, and Oceania, we bring decades of expertise to every product. Our Cotton Wound Filter Element 20 Inch 1 Micron Precision for RO Pre-treatment 60 GPM is designed to deliver reliable, high-performance filtration for reverse osmosis systems, ensuring your pretreatment stage operates at peak efficiency. This filter element combines deep filtration technology with durable cotton construction to remove fine particles, extend RO membrane life, and reduce maintenance costs.
Product Overview
This cotton wound filter cartridge is engineered for RO pre-treatment applications where consistent water quality and high flow rates are critical. The 20-inch length and 1-micron absolute rating provide precise particle capture, while the 60 GPM flow capacity ensures minimal pressure drop even under demanding conditions. Each element is manufactured using a continuous winding process that creates a gradient density structure—outer layers trap larger particles, inner layers capture finer contaminants. This design maximizes dirt-holding capacity and service life.
Key Features and Benefits
- High Precision Filtration: 1 micron nominal rating effectively removes sand, silt, rust, and other suspended solids, protecting downstream RO membranes from fouling.
- Deep Gradient Density: Cotton fiber wound in a controlled pattern creates a porous structure that holds more contaminants than surface-type filters, reducing replacement frequency.
- High Flow Capacity: Rated at 60 GPM (gallons per minute) at standard conditions, suitable for medium to large RO systems.
- Thermal & Chemical Compatibility: Cotton material is inert with most water treatment chemicals, operating reliably up to 50°C (122°F).
- Customizable End Caps: Available in DOE (double open end), 222 O-ring, or 226 O-ring configurations to fit standard filter housings.
- Cost-Effective: Lower initial cost compared to pleated or membrane filters, with excellent dirt-holding capacity for extended service intervals.
Technical Specifications
| Parameter | Value |
| Material | 100% Cotton (natural fiber) |
| Length | 20 inch (508 mm) |
| Micron Rating | 1 micron (nominal) |
| Flow Rate | 60 GPM (227 L/min) at 2 bar |
| Max Operating Temperature | 50°C (122°F) |
| Max Pressure Differential | 0.4 MPa (58 psi) |
| End Cap Options | DOE, 222 O-ring, 226 O-ring (customizable) |
| Core Material | Polypropylene or stainless steel (optional) |
Why Choose Our Cotton Wound Filter Element?
- Decades of Manufacturing Experience: Since 1998, we have refined our winding techniques to ensure consistent quality and performance.
- Global Market Reach: Our products are exported to over 10 regions worldwide, including North America, Europe, and Southeast Asia, meeting diverse water quality challenges.
- Rigorous Quality Control: Each filter element undergoes pressure testing and visual inspection before packaging.
- Custom Solutions: We offer OEM/ODM services for end caps, core materials, and packaging to match your specific requirements.
- Competitive Pricing: Direct factory pricing eliminates middlemen, providing excellent value for bulk orders.
Frequently Asked Questions (FAQ)
Q1: What is the difference between cotton wound and pleated filter cartridges?
A: Cotton wound filters use a depth filtration mechanism, trapping particles throughout the thickness of the media. They offer higher dirt-holding capacity and longer service life for sediment removal. Pleated filters have a larger surface area but are more prone to blinding when dealing with high solids loads.
Q2: Can this filter element be used for drinking water applications?
A: Yes, the cotton material is food-grade and suitable for potable water pre-treatment. However, we recommend a final carbon or UV stage for complete purification.
Q3: How often should I replace the filter element?
A: Replacement interval depends on feed water quality. Typically, when pressure drop increases by 10 psi or when flow rate decreases noticeably, it is time to change. For most RO pre-treatment systems, replacement every 3-6 months is common.
Q4: What end cap types are available?
A: We offer standard DOE (double open end), 222 O-ring, and 226 O-ring configurations. Custom end caps can be produced upon request.
Q5: Is the filter element compatible with high-temperature water?
A: The maximum operating temperature is 50°C (122°F). For higher temperature applications, please consult us for alternative materials.
Q6: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 100 pieces. For customized orders, MOQ may vary. Please contact our sales team for details.
Q7: How do you ensure consistent quality across batches?
A: We follow a strict quality management system. Each production batch is tested for flow rate, pressure drop, and micron rating. Random samples are also retained for archival.
Q8: Can you provide samples for testing?
A: Yes, sample orders are welcome. We can supply up to 5 pieces for evaluation. Shipping costs are borne by the buyer.
Trust and Reliability
With over 25 years of manufacturing history, Anping County Boli Hardware Wiremesh Products Factory has established a reputation for delivering high-quality filtration products. Our annual export value of US$5-10 million demonstrates the trust of global customers. We ship from major ports (Tianjin, Qingdao, Shanghai) with fast delivery times. Whether you need a small batch for a pilot project or container quantities for industrial RO systems, we are your reliable partner. Contact us today to discuss your requirements or request a quote.
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