What is the after-sales warranty period?

We offer a 12-month limited warranty period from the date of delivery. We also provide video technical support and online support to handle quality problems or technical issues.

Do you accept customized reverse osmosis membrane products?

Yes, we specialize in customized reverse osmosis membranes for special working conditions. Customization options include special sizes, performance optimization, and material modification. Please provide details such as required size, target performance parameters, and water quality analysis report.

High-Efficiency 4-Inch Reverse Osmosis Membrane for Water Purification

Name: High-Efficiency 4-Inch Reverse Osmosis Membrane for Water Purification
Brand: Hangzhou Haina Environmental Protection Tech Co., Ltd.
SKU: 2060095865

Zhejiang, ChinaHangzhou Haina Environmental Protection Tech Co., Ltd.

US$65.00

1-99 Pieces

US$55.00

100+ Pieces

Product specifications

ULP

Sample price:US$68.00/piece.Request sample

Product profile

Customization

Available

Type

Reverse Osmosis

Usage

Environmental Protection, Chemical Industry, Water Treatment

Model NO.

4040-ULP

Motive Force

Pressure

Style

Spiral

Performance

Efficient Filtration

Certification

CE, RoHS, ISO9001, RoHS, NSF

Salt Rejection

99.5%

Capacity

3200 Gpd

Working up

2000 TDS

Test Pressure

150psi

Recovery Rate

15%

Application

Industrial & Commercial Water Purifier

Marketing Type

Ordinary Product

Video Outgoing-Inspection

Provided

Working Pressure

150psi-600psi

After-Sales Service Provided

Video Technical Support, Online Support

Transport Package

Carton or Tray

Specification

BW-4040-LP

Trademark

Hynamo/OEM/ODM

Origin

Hangzhou City, Zhejiang, China

HS Code

8421991000

Production Capacity

14000PCS/Day

Key features

99.5% Salt Rejection: High-efficiency membrane ensures superior water purity with a nominal salt rejection rate of 99.5%.

Custom OEM/ODM Service: Professional design team offers one-stop customization for trademarks, packaging, and special specifications.

20 Years Expertise: 20 years of R&D and manufacturing experience in reverse osmosis and nanofiltration membrane elements.

12-Month Warranty: Comprehensive 12-month warranty coverage with factory quality inspection reports and photos provided.

High Capacity Output: Delivers up to 3200 GPD permeate flow rate, suitable for industrial and commercial water purification.

Advanced Production: Automated production lines guarantee stable performance and consistent quality for every membrane element.

Technical Support: Senior technical team provides full-cycle support, including video and online assistance for troubleshooting.

Company profile

Hangzhou Haina Environmental Protection Tech Co., Ltd.

Zhejiang, China

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: ≤6.62h 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:What specifications and models of RO membranes do you offer?

We provide a full range of reverse osmosis membranes, including 4-inch, 8-inch standard models and customized sizes. Our products cover three series: low-pressure (for drinking water purification, municipal water treatment), high-pressure (for seawater desalination, brackish water treatment), and ultra-low pressure (for industrial pure water, wastewater reuse).

Q:Are your reverse osmosis membranes compatible with equipment from major international brands?

Our reverse osmosis membranes are designed with universal dimensions and interface standards, fully compatible with equipment from international renowned brands-no additional modifications are required for installation.

Q:What is the service life of the reverse osmosis membrane under normal operating conditions?

Under normal operating conditions (proper pretreatment, standard pressure/temperature, regular maintenance), our reverse osmosis membranes have a service life of 2-5 years. Key influencing factors include raw water quality, operating pressure, cleaning frequency, and storage conditions.

Q:Do your products have international certifications?

Yes, our reverse osmosis membranes hold multiple international certifications, including ISO 9001 (quality management system), and NSF/ANSI 61 (drinking water contact safety). We can provide formal test reports and quality inspection certificates for each batch of products.

Q:What is the minimum order quantity (MOQ) for your reverse osmosis membranes?

Our MOQ is 1 piece for standard models (4-inch/8-inch). For customized models, the MOQ is negotiated based on specific requirements. The production cycle is 7-15 working days for standard orders, and 20-30 working days for customized orders.