Toray TM820M-440 7700 GPD Seawater RO Membrane | 8x40 High Area High Rejection

Toray TM820M-440 Seawater Reverse Osmosis Membrane Element

The Toray TM820M-440 is a premium high-surface-area 8" x 40" seawater RO membrane engineered for maximum permeate production with excellent salt rejection. With 440 ft² of active membrane area and a 28 mil feed spacer, it delivers higher flow than standard 400 ft² elements while maintaining outstanding performance in seawater and high-salinity applications.

Key Specifications:

• Part Number: TM820M-440
• Size: 8.0" x 40"
• Membrane Area: 440 ft² (41 m²)
• Nominal Salt Rejection: 99.80%
• Minimum Salt Rejection: 99.50%
• Permeate Flow Rate: 7,700 GPD (29.2 m³/day)
• Minimum Permeate Flow: 6,200 GPD (23.5 m³/day)
• Feed Spacer: 28 mil
• Test Conditions: 800 psi, 77°F (25°C), 32,000 mg/L NaCl, 8% recovery, pH 7
• Membrane Type: Cross-linked fully aromatic polyamide composite
• Boron Rejection (typical): 95% at pH 8

Applications:

• Large-scale seawater desalination
• High-salinity brackish water treatment
• Industrial & municipal water purification
• Offshore platforms and marine systems
• High-flow commercial RO systems

Features & Benefits:

• Larger 440 ft² active area for higher productivity
• High rejection for superior water quality
• Optimized 28 mil spacer for reduced fouling and higher flux
• Robust construction for long element life
• Wet-tested and vacuum-packed with deoxidant