OEM RO Membrane Solutions for US Water Brands
NSF/ANSI 58 Certified · Powered by OVAY · Built for Your Brand
NSF/ANSI 58 & 61
Certified Materials
Since 2017
NSF Certified
OEM Ready
Custom Branding
Global Supply
30+ Countries Served
Why Choose Us
Built for Brands That Demand More Than a Supplier
Direct factory partnership. Full OEM customization. Flexible scale. Engineering support that grows with your business.
Direct From Authorized Source
We source directly from Hunan Ovay Technology — eliminating middlemen, ensuring authentic NSF-certified products at factory-direct pricing.
Full OEM/ODM Customization
Private labeling, custom packaging, branded technical documentation — we make your product line truly yours.
Flexible MOQ
Whether you need 500 units to test a new SKU or 50,000 for a Costco rollout — we scale with your business.
Full Technical Support
From product selection to compliance documentation, our engineering team supports your team end-to-end.
Our Product Range
5 OVAY RO Membrane Series
From residential drinking water to semiconductor ultrapure water — comprehensive RO membrane solutions for every market segment.
RESIDENTIAL
OV-ULP
Residential & light commercial RO. 50-800 GPD. 96% Salt Rejection.
SEAWATER
OV-SW
Seawater desalination. High-pressure. 99.5%+ Salt Rejection.
ANTIFOULING
OV-FR
Antifouling heavy-duty. Engineered surface. Extended service life.
DATA CENTER
OV-L
Low pressure industrial. AI cooling & high-flux applications.
SEMICONDUCTOR
OV-SG
Semiconductor UPW. Ultrapure water. 18.2 MOhm cm output.
About Seven Pillars
Your Authorized OEM Partner for OVAY RO Membranes
Seven Pillars is the authorized OEM/ODM partner of OVAY (Hunan Ovay Technology Co., Ltd.) — an NSF/ANSI 58 & 61 certified manufacturer with NSF certification since 2017 in global RO membrane markets.
We help water purifier manufacturers, private-label brands, and OEM buyers across the United States source authentic OVAY membranes with full customization support — bridging the gap between certified Chinese manufacturing and American brand quality standards.
Certifications
NSF/ANSI 58 & 61 Certified
Every OVAY membrane is backed by continuous NSF certification since 2017. Independently verifiable.
Trusted by US Compliance Auditors
All OVAY membranes sold by Seven Pillars are NSF/ANSI 58 & 61 certified — backed by Hunan Ovay Technology continuous certification with NSF International since 2017.
Certificate #: C0270790-02
Verify at: info.nsf.org/Certified/DWTU
Company: Hunan Ovay Technology Co., Ltd.
Ready to Launch Your RO Product Line?
Get a custom OEM quote within 24 hours. Tell us about your project — MOQ, target market, customization needs — and we will send a tailored proposal.