membrane-ro.com | High-Performance RO Membranes for Industrial & Domestic Use

About Hangzhou Haina Environmental Protection Tech

Since our foundation, we have been investing in promising research & development work to secure our lead. We adhere to the corporate goal of "BETTER QUALITY, FURTHER WAY" and provide high cost-performance products for clients worldwide.

Our R&D team is formed by doctors, masters, and senior membrane industry experts. We focus on independent innovation and strict quality control to deliver reliable, high-efficiency RO membranes for industrial, commercial, and domestic applications.

ISO-Certified Manufacturing
NSF & RoHS Compliant Products
20+ Years of Industry Experience
Global Export to 60+ Countries

Our Premium RO Membrane Products

Explore our wide range of high-performance reverse osmosis membranes for industrial, commercial, and domestic applications.

5000 High TDS RO Membrane

Model: BW-4021
Capacity: 950 GPD
Salt Rejection: 99.5%
Max Pressure: 600 psi
Type: Low Pressure, High TDS

Best Seller

Commercial RO Membrane 2540

Model: LP-2540
Capacity: 400 GPD
Salt Rejection: 97%
Max Pressure: 150 psi
Type: Low Pressure, Brackish Water

Commercial Use

Polyamide High TDS RO Membrane

Model: 8040-ULP
Capacity: 10,500 GPD
Salt Rejection: 99.7%
Max Pressure: 225 psi
Type: Ultra-Low Pressure

Industrial Grade

3013 RO Membrane 400 GPD

Model: 3013-400
Capacity: 400 GPD
Salt Rejection: 96%
Max Pressure: 150 psi
Type: High Flow, Compact

High Flow

Brackish Water RO Membrane 2400GPD

Model: 4040-2400
Capacity: 2,400 GPD
Salt Rejection: 99.5%
Max Pressure: 300 psi
Type: 4" High Rejection

High Efficiency

Industrial RO Membrane 8040

Model: BW-8040
Capacity: 10,500 GPD
Salt Rejection: 99.7%
Max Pressure: 600 psi
Type: Industrial, Fouling Resistant

Heavy Duty

NSF Certified RO Membrane 4"

Model: NSF-4040
Capacity: 1,000 GPD
Salt Rejection: 99.5%
Max Pressure: 600 psi
Type: NSF, Low Pressure

NSF Certified

NF RO Membrane 4040

Model: NF-4040
Capacity: 1,800 GPD
Rejection: Nanofiltration
Max Pressure: 250 psi
Type: Wastewater, Nanofiltration

Nanofiltration

View All 134+ Products

Why Choose membrane-ro.com?

We combine innovation, quality control, and global support to deliver unmatched RO membrane performance.

Quality Guaranteed

ISO-certified production and strict QC ensure every membrane meets international standards.

Eco-Friendly

High recovery rates and low energy consumption reduce environmental impact.

Global Support

Serving clients in 60+ countries with fast shipping and technical assistance.

R&D Driven

Backed by a team of PhDs and industry experts focused on innovation.

Frequently Asked Questions

What is the difference between RO and NF membranes?

Reverse Osmosis (RO) membranes remove up to 99.7% of dissolved salts and contaminants. Nanofiltration (NF) membranes allow some monovalent ions to pass while rejecting divalent ions, making them ideal for water softening and partial desalination.

Can your membranes handle high TDS water?

Yes. We offer specialized High TDS RO membranes designed for water with TDS up to 5000 ppm, ensuring high salt rejection and long membrane life even under challenging conditions.

Are your products NSF certified?

Yes, several of our domestic and commercial RO membranes are NSF/ANSI 58 certified, ensuring safety and performance for drinking water applications.

What is the typical lifespan of your RO membranes?

With proper pretreatment and maintenance, our industrial membranes last 3–5 years, while domestic membranes typically last 2–3 years.

Get in Touch

Ready to discuss your RO membrane needs? Contact us today for pricing, samples, and technical support.

For inquiries, please visit the official website to submit your request or get updated contact details.

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