A variable-speed internal controller is an innovative device designed to integrate a water level sensor, a drain pump, and a fan motor into a single unit and provide control access. It allows variable speed adjustment, protects the pump from dry running, and has a timer setting to allow automatic tank draining.
| Part No | 18CB1 |
| Dimension (L*W*H) (mm) | 150*90*270 |
| Net Weight (g) | 1270 |