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High-Quality Bw4021 RO Membrane for Brackish Water Purification
US$33.20
10-199 Pieces
US$33.00
200-299 Pieces
US$32.50
300-499 Pieces
US$32.00
500-999 Pieces
US$30.00
1,000+ Pieces
Sample price:US$35.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Poly-Amide Thin-Film CompositeApplication
Industry, Food and Beverage, Medicine, Home, Hotel, Commercial, IndustrialModel NO.
BW4021 For RO Reverse Osmosis MembraneType
RO MembraneFilter Connector
Flat ConnectorMembrane Type
TubularGallons Per Day
GpdDesalination Rejection Rate
99.2%Testing Pressure
150psiSample
YespH Range
2~11Max Adapted Temperature
45℃Max Feed Water Tsd
2000TDSAfter-Sales Service Provided
Free Spare PartsWeight
3kgProduct Name
Water Treatment System Processing Reverse OsmosisAfter Warranty Service
Video Technical Support, Online Support, Spare PARTransport Package
Canton BoxTrademark
Hynamo/OEM/ODMOrigin
ChinaHS Code
8421991000Production Capacity
15000/MonthKey features
17 Years Manufacturing Experience: Professional manufacturer with 17 years in R&D and production of RO membranes.
High Desalination Technology: Polyamide coating process allows use in 30,000-40,000 ppm seawater environments.
Wide Application Range: Suitable for industry, food, medicine, home, hotel, and commercial use.
Customizable Packaging: Package can be customized with your own logo based on specific orders.
Free Spare Parts Service: Provides free spare parts and video technical support after warranty.
Fast Delivery Time: Usually delivers within 7 days, depending on order quantities.
Quality Guarantee: Guarantees replacement and covers freight for reasonable quality issues.
Company profile
Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2005-04-10 CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤7.11h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryHangzhou Haina Environmental Protection Tech Co., Ltd. is a China-based manufacturer/factory specializing in water-treatment products, including RO membranes, RO systems, desalination, wastewater treatment equipment, filter cartridges, and membrane shells. It reports BSCI, ISO 9001, and ISO 14001 certifications, more than 10 production lines, 6–10 R&D engineers, and 6–10 quality-control staff. The supplier has exported since 2005, with exports accounting for 41%–50% of total sales and distribution partly through agents. Its stated capabilities include technical advice, customer-specific technical solutions, standardized management, and automated equipment improvements. However, the provided information does not establish documented after-sales performance, customer cases, or independently verifiable innovation outcomes.
Supplier typeThe supplier is identified as a manufacturer/factory and limited company located in Yuhang District, Hangzhou, Zhejiang, China. Its associated industry is manufacturing, and its stated business scope covers industrial equipment and processing machinery, including water-treatment products.
CertificationsThe supplier reports holding BSCI, ISO 9001, and ISO 14001 management-system certifications. These certifications provide explicit evidence of formal social-compliance, quality-management, and environmental-management systems, although certificate validity and scope are not provided.
R&D capabilityThe supplier reports 6–10 R&D engineers and states that it has pursued innovation, standardized management, and automated equipment transformation since 2013. These are explicit capability indicators, but no specific patented technologies, new products, or measurable innovation results are provided.
Production capacityThe supplier operates more than 10 production lines, employs 6–10 quality-control staff, and reports standardized management and automated equipment improvements. Its factory status and production infrastructure support substantial manufacturing capability, although actual capacity utilization and lead-time performance are not stated.
Customization capabilityThe supplier explicitly states that its technical team provides targeted professional advice and technical solutions for each customer, indicating an ability to address customer-specific technical requirements. The slices do not specify customization scope, engineering workflow, minimum order conditions, or examples of completed customized products.
Product Q&A
Q:Is your company a manufacturer or trading company?
A:
We are a manufacturer with our own factory and independent R&D personnel, mastering core technology in high salt water purification.
Q:What are the advantages of your products?
A:
Our polyamide coating process differs from counterparts, allowing household membranes to handle 3,000-4,000 ppm water and seawater membranes up to 40,000 ppm with obvious cost advantages.
Q:What is your MOQ?
A:
MOQ varies by model: 200 pcs for household membranes and 50 pieces for industrial membranes. OEM orders have different requirements.
Q:How to pay?
A:
TT and L/C are acceptable. We prefer TT with 30% deposit before production and 70% balance against the copy of B/L.
Q:What is the delivery time?
A:
Usually within 7 days, depending on order quantities.
Send Inquiry
*To:Hangzhou Haina Environmental Protection Tech Co., Ltd.
Hangzhou Haina Environmental Protection Tech Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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