Dow FilmTec NF 4040 – 4" Nanofiltration Replacement Membrane

The NF 4040 is a high-efficiency 4" replacement membrane, engineered for nanofiltration (NF) applications requiring effective contaminant removal with minimal energy consumption. Designed for industrial, commercial, and municipal water treatment, this membrane provides exceptional filtration while maintaining optimal water flow, making it ideal for softening, organic removal, and partial desalination processes.

Key Features:

✔️ 4" Diameter – Standard size for mid-capacity reverse osmosis and nanofiltration systems
✔️ Nanofiltration Technology – Provides effective separation of contaminants while maintaining beneficial minerals
✔️ Selective Salt Rejection – Removes unwanted salts, organic compounds, and hardness-causing minerals
✔️ Optimized Flow Performance – Maintains high water output while reducing operating pressure
✔️ Thin-Film Composite (TFC) Structure – Enhances durability and ensures long-lasting performance
✔️ Industrial & Commercial Applications – Ideal for municipal water treatment, food and beverage processing, and pharmaceutical applications
✔️ Energy-Efficient Design – Operates at lower pressure compared to traditional RO membranes
✔️ Easy Replacement & Maintenance – Seamlessly integrates into existing NF/RO systems

The NF 4040 4" replacement membrane is an excellent choice for nanofiltration applications, offering high-performance water treatment, selective salt rejection, and long-term operational efficiency.