What is the pH range for operation?

Most of our membranes, including brackish and seawater desalination types, operate within a pH range of 2-11.

Do you offer OEM or ODM services?

Yes, we offer OEM and ODM services. Customization options include customization from samples, designs, full customization, flexible customization, and minor customization.

4021 RO Membrane Replacement Industrial Water Treatment Filter Membrane

Name: 4021 RO Membrane Replacement Industrial Water Treatment Filter Membrane
Brand: NINGBO RXHL TECHNOLOGY CO., LTD
SKU: 2221299525

Zhejiang, ChinaNINGBO RXHL TECHNOLOGY CO., LTD

US$26.00-30.00

100 piece

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

Membrane Type

Spiral

Type

Model NO.

ULP-4021

Application

Industrial

Testing TDS

1500ppm Nacl

Testing Pressure

150psi

Permeate Flow

1000gpd (4.3m³/D)

Min.Rejection

98.5%

Stable Rejection

99%

Recovery

15%

pH_Range

2-11

Transport Package

Carton

Specification

0.55*0.21*0.22m

Trademark

RTL

Origin

China

HS Code

8421999090

Key features

High Desalination Efficiency: Stable rejection rate up to 99.85% for seawater and 99.70% for brackish water applications.

Wide pH Operating Range: Operates effectively within a pH range of 2-11, suitable for diverse water conditions.

Fouling Resistant Design: Specialized FR membranes offer enhanced resistance to fouling for longer service life.

Low Energy Consumption: LE and ULE series membranes reduce operating pressure requirements for energy savings.

Manufacturer Direct Supply: Direct from factory with 9-year industry background and independent R&D capabilities.

Quality Guarantee: Zero customer complaints policy with replacement guarantee and freight responsibility for quality issues.

Customization Options: Offers full customization, flexible customization, and minor customization based on samples or designs.

Comprehensive Product Range: Includes Brackish, Seawater, Low Energy, Fouling Resistant, and Nanofiltration membrane models.

Company profile

R&D CapabilitiesQuality AssuranceOEM ServicesFast Delivery

NINGBO RXHL TECHNOLOGY CO., LTD

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 7 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.76h

AI-Powered supplier vetting

SummaryNingbo RXHLi Technology Co., Ltd. is presented as a water-treatment membrane manufacturer with UF and RO production facilities, laboratory resources, six German-imported reverse-osmosis membrane lines, and 30 quality inspectors. It reports ISO9001:2015 and ISO14001:2015 certification, 3D design, ODM, OEM, and broad customization capabilities, including customization from samples, designs, and full specifications. The supplier has exported for seven years, with exports representing 11%–20% of total sales, and accepts multiple trade and payment terms. Service controls include written supplier-assessment procedures, approved-supplier records, and corrective/preventive-action procedures. However, it reports no overseas warehouses, showrooms, agents, or branches, no SDK, and no established AI model for data-driven management. Customer-specific cases are not identified in the provided information.

Supplier typeThe supplier is identified as Ningbo RXHLi Technology Co., Ltd. and is described as a water-treatment membrane technology manufacturer with UF and RO production lines, rolling equipment, water-testing equipment, and a laboratory. Its seven years of export activity and stated self-operated import/export rights also support classification as a manufacturing supplier with international trading capability.

CertificationsThe supplier explicitly reports ISO9001:2015 and ISO14001:2015 certificates. These provide direct evidence of certified quality-management and environmental-management systems.

R&D capabilityThe supplier provides 3D software design, reports new products in the past year, and offers ODM services. Its reported lack of an SDK and lack of an established AI model for big-data decision support indicate limitations in certain technology capabilities, but do not negate the documented product-development and design activity.

Production capacityThe supplier reports six German-imported reverse-osmosis membrane production lines, UF and RO flat-sheet lines, domestic and industrial rolling machines, water-testing equipment, a laboratory, and 30 quality inspectors. It also states that finished products are inspected using written instructions that are uniformly followed, providing direct evidence of established production and quality-control resources.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, flexible customization, and minor customization, together with 3D software design services. These statements directly indicate broad customization capability.

Product Q&A

Q:Is your company a manufacturer or trading company?

We are a manufacturer with our own factory and cooperate with other factories using our technology. RTL has a 9-year background in the reverse osmosis membrane industry with independent R&D personnel and engineering, mastering core high salt water purification technology.

Q:What is your minimum order quantity (MOQ)?

The minimum order quantity varies by model. For household membranes, the minimum is 1000 pcs, and for industrial membranes, it is 100 pieces. OEM orders may have different requirements.

Q:What are the advantages of your products?

Our technical advantage lies in high desalination technology and a unique polyamide coating process. Household membranes can handle 3,000-6,000 ppm water quality, while seawater membranes handle 30,000-40,000 ppm, offering significant cost advantages.

Q:What is your guarantee for quality problems?

We maintain zero customer complaints. If a quality problem is verified through our reasonable process, we guarantee replacement and are responsible for the freight.

Q:What is the stable rejection rate of your membranes?

Stable rejection rates vary by model. For example, the SW-8040-400XLE has a stable rejection of 99.75%, while brackish water membranes typically offer 99.50% to 99.70% stable rejection.