Commercial RO Membranes

Commercial reverse osmosis membrane elements by SpiroPure provide a variety of options for commercial RO applications. Brackish water, extremely low pressure / low energy, and seawater desalination membranes are offered in universal 2521 (2.5x21), 2540 (2.5x40), and 4021 (4x21) sizes.
  • Offer food-grade seals that will not deform and provide leak protection, as well as anti-fouling technology for a longer membrane lifespan
  • Filtration down to 0.0001 micron for up to 99.6% reduction of TDS such as of salt, organic matter, and heavy metals
  • Brackish water membranes produce high quality water for brackish and tap water applications with low pressure and high permeate flow requirements
  • Extremely low pressure RO membranes need even lower pressure and energy for ultra energy savings
  • Seawater desalination elements are specially designed to treat sea water and other high sodium applications with a high NaCl rejection rate
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Product Specifications
Model Membrane Type Rejection Rate Average Permeate ±15% Feedwater NaCl Fresh Water Recovery Rate Concentration of Salt Solution (Feedwater NaCl) Feed Spacer Maximum Recommended NaCl Maximum Operating Pressure
SpiroPure SP-XL2521 SpiroPure SP-XL2521 Extremely Low Pressure 98.5% 300 GPD @ 100 psi 500 ppm 8% 500 ppm 28 mm < 2,000 ppm 600 psi
SpiroPure SP-XL4021 SpiroPure SP-XL4021 Extremely Low Pressure 98.5% 950 GPD @ 100 psi 500 ppm 8% 500 ppm 28 mm < 2,000 ppm 600 psi
SpiroPure SP-BW2521 SpiroPure SP-BW2521 Brackish Water 99.5% 300 GPD @ 225 psi 2,000 ppm 8% 2,000 ppm 28 mm < 10,000 ppm 600 psi
SpiroPure SP-BW2540 SpiroPure SP-BW2540 Brackish Water 99.5% 750 GPD @ 225 psi 2,000 ppm 8% 2,000 ppm 28 mm < 10,000 ppm 600 psi
SpiroPure SP-SW2521 SpiroPure SP-SW2521 Seawater Desalination 99.5% 270 @ 800 psi 32,000 ppm 4% 32,000 ppm 28 mm < 40,000 ppm 1,000 psi
SpiroPure SP-SW2540 SpiroPure SP-SW2540 Seawater Desalination 99.6% 600 GPD @ 800 psi 32,000 ppm 8% 32,000 ppm 28 mm < 40,000 ppm 1,200 psi
Cross Reference Chart
Membrane Type SpiroPure Dupont / Filmtec GE / SUEZ Axeon LG Chen
Extremely Low Pressure SP-XL2521 XLE-2521 XE1-2521 LG BW 2521 UES
Extremely Low Pressure SP-XL4021 XLE-4021 XE1-4021 LG BW 4021 UES
Brackish Water SP-BW2521 TW30-2521 LG BW 2521 R
Brackish Water SP-BW2540 BW30-2540 AG2540TM LG BW 2540 R
Seawater Desalination SP-SW2521 SW30-2521 SE1-2521
Seawater Desalination SP-SW2540 SW30-2540 SE1-2540
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