💧PREMIUM COMMERCIAL MEMBRANE: The Max Water 4021 membrane features 36 ft² of active membrane area, delivering superior durability and performance over inferior alternatives. Expertly engineered by U.S. specialists, this membrane is tailored for North American water quality, ensuring long-lasting and dependable filtration. 💧OPTIMAL PURITY & PERFORMANCE: Our 4" x 21" RO membrane produces up to 950 gallons of purified water per day, with a 99.20% impurity rejection rate. This 0.0001 micron TFC membrane effectively removes heavy metals (like lead and chromium), fluoride, organic contaminants and harmful minerals. 💧CHOOSE THE RIGHT MEMBRANE: Ideal operating pressure: 150 PSI (max 600 PSI). Chlorine tolerance: ≤0.1 ppm. Compatible pH range: 3–10. Each membrane model is designed for specific water qualities, so understanding your water chemistry, pressure, and ppm is crucial for selection. 💧WIDE COMPATIBILITY: The ULP-4021 reverse osmosis membrane is ideal for whole-house, agricultural, commercial, and industrial water filtration systems. It fits all standard 4" x 21" RO membrane housings and ensures easy integration with leading models like Dow Filmtec TW30-4021 and GE AK4021TF. 💧ADVANCED TFC MEMBRANE TECHNOLOGY: Engineered in US based labs, our advanced thin film composite membrane ensures high rejection, fast flow, and long-term durability for both desalination and purification applications. Manufactured under strict ISO 9001 standards. 💧BUILT TO LAST – 2 TO 3 YEAR LIFESPAN: Shipped dry and sealed for extended shelf life. This BPA-free membrane is chemical-safe for all water filtration needs. Expected lifespan: 24–36 months depending on feed water quality, temperature and pressure. 💙TRUSTED EXPERTISE: With over 15 years in the water filtration industry, Max Water has delivered effective solutions and exceptional customer service to millions of families. Choose Max Water for reliable, high-quality filtration solutions. The Max Water ULP-4021 Reverse Osmosis Membrane is an ideal choice for commercial reverse osmosis systems, providing top-tier filtration and reliable performance for a range of applications. They fit standard 4"" x 21"" membrane housings, whether stainless steel, PVC, or fiberglass.
The ULP-4021 RO membrane is suitable for residential reverse osmosis systems, schools and educational institutions, commercial establishments, such as restaurants, coffee shops, small-scale food processing facilities, office buildings, hospitals and healthcare, ice machines, public water dispensers, manufacturing and processing, recreational facilities, and more.
The ULP-4021 membrane is designed to produce 950 gallons per day (GPD) at an operating pressure of 150 PSI. However, if you reduce the incoming city water pressure to a range of 60 to 80 PSI, the reduced pressure will result in a lower permeate flow rate. In this case, you can expect the permeate flow to be approximately in the range of 400 to 500 GPD, depending on the specific incoming low pressure applied.
The ULP-4021 RO membrane is suitable for residential reverse osmosis systems, schools and educational institutions, commercial establishments, such as restaurants, coffee shops, small-scale food processing facilities, office buildings, hospitals and healthcare, ice machines, public water dispensers, manufacturing and processing, recreational facilities, and more.
The ULP-4021 membrane is designed to produce 950 gallons per day (GPD) at an operating pressure of 150 PSI. However, if you reduce the incoming city water pressure to a range of 60 to 80 PSI, the reduced pressure will result in a lower permeate flow rate. In this case, you can expect the permeate flow to be approximately in the range of 400 to 500 GPD, depending on the specific incoming low pressure applied.