The Heron GRO-400 is a 400 GPD commercial RO purifier serving 180 to 200 people daily. Features two pressure meters, a flow meter, and an 11-gallon (40L) pressure tank. Heron brand established since 2008.
| Brand | Heron |
| Model | GRO-400 |
| Warranty | 1 Year |
| Technology | RO + Mineral |
| Origin | China (USA Technology) |
| Filtration Stages | 5 |
| Flow Rate | 400 GPD |
| Tank Capacity | 11 Gallon (40 Litre) |
| Dimensions | 78x41x23 CM |
