Vontron ULP21-2521 membrane element
By Vontron Technology Co., Ltd.
ULP21-2521. Reverse osmosis treatment of surface, underground and municipal water with feed TDS below 2000 ppm for drinking, boiler and process-water applications. Effective membrane area: 14 ft²; Permeate flow: 300 GPD.
Specifications
| Attribute | Value | Conditions | Source |
|---|---|---|---|
| Effective membrane area | 14 ft² | Named model in public product overview | Vontron public model overview |
| Permeate flow | 300 GPD | Published overview value; test pressure, temperature and recovery are not stated on this page | Vontron public model overview |
| Stable rejection rate | 99.0 % | Published overview value; application performance is not guaranteed | Vontron public model overview |
| Feed spacer thickness | 28 mil | Named model in public product overview | Vontron public model overview |
Sources and updates
Scope of this page: Named model only. The manufacturer states that performance varies with conditions and the overview is reference information, not an actual-application performance guarantee. Gated PDF downloads were not accessed.
Vontron public model overview
Original publication · Vontron Technology Co., Ltd.
Model identity, product category, documented use and the technical properties listed on this page.
Source accessed: 27 October 2026
Content updated 27 October 2026. Source dates describe the documents or the recorded access to them.
How information is documented