About KnappRO

KnappRO is a Chicago-based water treatment supplier specializing in high-performance reverse osmosis membranes for industrial, commercial, and municipal applications. Based in Chicago, IL, we serve customers across the United States and internationally — bringing reliable, technically sound solutions to water treatment professionals who demand the best.

Our Expertise

Water treatment is a precision industry, and we take that seriously. Our team has deep knowledge of reverse osmosis technology, from brackish water systems to seawater desalination. Whether you're sourcing membranes for a large-scale industrial plant or a specialized commercial system, we understand the technical requirements and can help you find the right product for your application.

The Brands We Carry

We partner with the world's leading membrane manufacturers because quality isn't something we're willing to compromise on. Our product lineup includes:

• DuPont FilmTec — Industry-standard membranes trusted globally for consistent performance and durability.
• Hydranautics — Innovative membrane solutions engineered for a wide range of water treatment challenges.
• LG — Advanced membrane technology combining high rejection rates with energy efficiency.
• Toray — Precision-engineered membranes with a proven track record in demanding applications.

We chose these brands because they represent the gold standard in the industry — and because our customers rely on us to deliver products that perform as expected, every time.

Our Commitment to You

At KnappRO, we believe that great products are only part of the equation. Responsive, knowledgeable service is just as important. We pride ourselves on fast communication — our customers regularly reach us within 24 hours — and we're committed to helping you find the right solution, not just making a sale.

"Outstanding service and fast response — heard back within 24 hours. Highly recommend KnappRO for anyone in the water treatment industry."
— Verified Customer ⭐⭐⭐⭐⭐

Whether you're a first-time buyer or a long-term partner, you'll get the same level of attention and expertise. We're here to make your procurement process straightforward and reliable.

Get in Touch

Have a question about a specific membrane, need a quote, or want to discuss your project requirements? We'd love to hear from you.

KnappRO Chicago
sales@KnappROChicago.com
Chicago, IL
Contact Us