HCTI
Replaces TW30-4021 DuPont FilmTec 800 GPD at 225 PSI 4 x 21 inch 99.5% Rejection Membranes ( MEM-4021TW )
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- Hydrocomponent's membranes are equivalent to all major U.S. brands!
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- MADE IN THE UNITED STATES!
- 1 Year Manufacturer's Warranty!
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- Call: 1 (760) 598-0189
- Email: hctivista@gmail.com
Direct Replacement for FilmTec TW30-4021 RO Membrane
This commercial-grade tap water reverse osmosis (RO) membrane is precision-engineered to serve as a direct, drop-in replacement for the DuPont FilmTec TW30-4021. Designed to fit identically into standard 4-inch by 21-inch commercial pressure vessels, it provides small business owners and facility operators with a highly cost-effective alternative that maintains rigorous water purification standards without requiring any system modifications or plumbing adjustments.
Utilizing advanced thin-film composite (TFC) technology, this U.S.-made, tape-wrapped element operates efficiently at a standard applied test pressure of 225 PSI. Under these conditions, it delivers a reliable permeate flow rate of 800 gallons per day (GPD) alongside an excellent salt rejection rate of 99.50%. By ensuring the consistent removal of dissolved solids and other contaminants, this replacement membrane serves as an ideal choice for continuous-duty commercial purification, food service, hospitality, and light-industrial tap water treatment setups requiring high-purity output.
| Specification | Details |
| Product Type | Direct Replacement RO Membrane |
| Direct Replacement For | TW30-4021 |
| Manufacturer | HCTI |
| Model Number | MEM-4021TW |
| Membrane Type | Tap Water RO (Thin-Film Composite) |
| Nominal Size | 4.0" x 21" |
| Permeate Flow Rate | 800 GPD |
| Salt Rejection | 99.50% |
| Test PSI (Applied Pressure) | 225 PSI (1.55 MPa) |
| Country of Origin | Made in the USA |
Non-OEM Compatibility: This product is a high-quality, non-OEM compatible replacement membrane designed to function as an alternative to original manufacturer components. While engineered for direct fit and functional compatibility, specific performance metrics and technical specifications—including, but not limited to, permeate flow rate (GPD), operating pressure (PSI), and salt rejection percentages—may vary from the exact specifications of the original OEM target model. It is the customer's sole responsibility to cross-reference these specifications with the original part to ensure the replacement meets their specific operating requirements prior to purchase and installation. All brand names, part numbers, and logos are the property of their respective owners and are used solely for identification and cross-reference purposes. This product is not affiliated with, endorsed by, or sponsored by any original equipment manufacturer.
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