Filmtec (SW30-4021) Seawater Membrane 800 GPD 4" X 21"
800 GPD High-Flow Seawater Reverse Osmosis Element
The Filmtec SW30-4021 seawater membrane is engineered for high-salinity applications where consistent performance matters. With 800 gallons per day capacity and 99.4% stabilized salt rejection from 32,000 ppm feedwater, this 4" x 21" element handles both sea-based and land-based desalination with lower operating pressure requirements than competing membranes.
Filmtec SW30-4021 Performance Data
| Model Number | SW30-4021 |
| Dimensions | 4 inches x 21 inches |
| Active Surface Area | 33 ft² (3.1 m²) |
| Permeate Flow Rate | 800 gpd (3.0 m³/d) |
| Salt Rejection | 99.4% (stabilized) |
| Operating Pressure | 800 psi (55 bar) |
| Test Conditions | 32,000 ppm NaCl, 77°F (25°C), 2% recovery |
| Flow Tolerance | ±20% per element |
| Product Type | Commercial seawater RO membrane |
Application & System Requirements
The Filmtec SW30-4021 membrane fits standard 4-inch commercial RO housings and is designed for high-salinity seawater desalination systems operating at 800 psi. This element works in both marine vessels and land-based desalination plants where 32,000 ppm or higher total dissolved solids are present. The lower pressure operation compared to earlier generation membranes allows you to reduce pump sizing and energy costs while maintaining high rejection rates. Automated precision fabrication ensures consistent performance across production batches. Note that individual membrane flow rates may vary by up to 20 percent due to manufacturing tolerances.
800 GPD High-Flow Seawater Reverse Osmosis Element
The Filmtec SW30-4021 seawater membrane is engineered for high-salinity applications where consistent performance matters. With 800 gallons per day capacity and 99.4% stabilized salt rejection from 32,000 ppm feedwater, this 4" x 21" element handles both sea-based and land-based desalination with lower operating pressure requirements than competing membranes.
Filmtec SW30-4021 Performance Data
| Model Number | SW30-4021 |
| Dimensions | 4 inches x 21 inches |
| Active Surface Area | 33 ft² (3.1 m²) |
| Permeate Flow Rate | 800 gpd (3.0 m³/d) |
| Salt Rejection | 99.4% (stabilized) |
| Operating Pressure | 800 psi (55 bar) |
| Test Conditions | 32,000 ppm NaCl, 77°F (25°C), 2% recovery |
| Flow Tolerance | ±20% per element |
| Product Type | Commercial seawater RO membrane |
Application & System Requirements
The Filmtec SW30-4021 membrane fits standard 4-inch commercial RO housings and is designed for high-salinity seawater desalination systems operating at 800 psi. This element works in both marine vessels and land-based desalination plants where 32,000 ppm or higher total dissolved solids are present. The lower pressure operation compared to earlier generation membranes allows you to reduce pump sizing and energy costs while maintaining high rejection rates. Automated precision fabrication ensures consistent performance across production batches. Note that individual membrane flow rates may vary by up to 20 percent due to manufacturing tolerances.
Original: $508.18
-65%$508.18
$177.86Description
800 GPD High-Flow Seawater Reverse Osmosis Element
The Filmtec SW30-4021 seawater membrane is engineered for high-salinity applications where consistent performance matters. With 800 gallons per day capacity and 99.4% stabilized salt rejection from 32,000 ppm feedwater, this 4" x 21" element handles both sea-based and land-based desalination with lower operating pressure requirements than competing membranes.
Filmtec SW30-4021 Performance Data
| Model Number | SW30-4021 |
| Dimensions | 4 inches x 21 inches |
| Active Surface Area | 33 ft² (3.1 m²) |
| Permeate Flow Rate | 800 gpd (3.0 m³/d) |
| Salt Rejection | 99.4% (stabilized) |
| Operating Pressure | 800 psi (55 bar) |
| Test Conditions | 32,000 ppm NaCl, 77°F (25°C), 2% recovery |
| Flow Tolerance | ±20% per element |
| Product Type | Commercial seawater RO membrane |
Application & System Requirements
The Filmtec SW30-4021 membrane fits standard 4-inch commercial RO housings and is designed for high-salinity seawater desalination systems operating at 800 psi. This element works in both marine vessels and land-based desalination plants where 32,000 ppm or higher total dissolved solids are present. The lower pressure operation compared to earlier generation membranes allows you to reduce pump sizing and energy costs while maintaining high rejection rates. Automated precision fabrication ensures consistent performance across production batches. Note that individual membrane flow rates may vary by up to 20 percent due to manufacturing tolerances.
