HP30-1812-75 Ultra Low Pressure Membrane
- Estimated Delivery : Up to 4 business days
HP30‑1812‑75 Ultra Low Pressure Membrane – Efficient RO Element
The HP30‑1812‑75 Ultra Low Pressure Membrane delivers high-quality water for residential and small commercial RO systems that operate at low feed pressure. It produces up to 75 GPD (≈ 284 L/day) and reduces energy consumption while maintaining excellent purification performance.
Why Choose the HP30‑1812‑75 Ultra Low-Pressure Membrane
This membrane fits standard 1812 housings, making installation or replacement straightforward. Because it operates at lower pressure, it decreases pump stress and energy use. Furthermore, it ensures consistent water quality while extending system longevity when paired with proper pre-filtration.
Applications & Benefits
- Ideal for under-sink or small commercial RO systems with limited feed pressure
- Reduces energy costs and pump strain
- Easy to install in existing housings
- Ensures long-term water quality and system reliability
- Extends membrane life when maintained properly
Product Performance
| Model | Permeate Flow GPD (m3/d) |
Rejection Rate (%) |
Min. Rejection (%) |
| HP30-1812-75 | 75 (0.28) | 95 | 92 |
Technical Specs
- Testing Pressure 60 psi (0.41MPa)
- Temperature of the Testing Solution 25°C
- Concentration of Testing Solution (NaCl) 250 ppm
- pH of the Testing Solution 6.5~8.5
- Recovery of Single Element 15 %
* Each membrane element may have ±15% variation of permeate flow
* Rejection Rate ±2%
Important Information
- Before the membrane element leaves the factory, the dry membrane element has no preservation solution. The wet membrane element has 1.0% sodium bisulfite (in winter, add 10% of propylene glycol antifreeze) as the preservation solution for storage treatment and use vacuum packaging.
- Dry membrane elements should always be maintained wet after soaking; when wet membrane elements are not used for a long time, a preservation solution is needed to soak the elements.
When the membrane element is used for the first time, it is recommended to flush it first for 15-25 minutes at low pressure (not suitable for soaking or soaking overnight), and then flush it for 60-90 minutes at high pressure (the water flow should not be less than 50% of the system design water flow). - The permeate water and concentrated water within the first hour of the initial operation of the membrane element should all be discharged.
The operating limits and operational guidelines given in this technical information are part of the limitations of the three-year warranty on the membrane element. - The addition of any chemicals that may affect the membrane element during storage and operation is prohibited, and it will not be liable for any consequences arising from the use of such chemicals.
- Please refer to the Product Manual for details on installation, commissioning, storage, and transportation of membrane elements.








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