| Item | Commodity | Description |
| HT-EP | Main body: Extension part | – |
| PF-10T-PRK | Optional: 10″ triple filter (PP+DI+KDF) | Including: 10″ spun fiber PP filter,10″ water softener filter,10″ KDF filter |
| PTC-MBR-12L | Optional: 12 liters mixed bed resin cartridge | Lifetime: about 20´000 liters pure water |
| TANK-P-15L | Optional: Pressure tank | To store RO water, capacity:15 liters |
| DG-PTFE | Optional: PTFE water dispenser | Material of dispenser: PTFE, including PFA extension tube(1/4″ 3M) |
| DG-PP | Optional: PP water dispenser | Material of dispenser: PP, including PP extension tube(1/4″ 3M) |
| ORM-P | Optional: Portable on-line resistivity meter | Dry cell design or external power supply, to measure on-line resistivity |
