88191B
| Description | 1531 controller connector of 12 pins |
| Model | AT 2000 ST / AT 2000 S / AT 2000 / Thermo 90 ST / Thermo 90 S / Thermo 300 |
| Type | Water / Air |
| Application | RV (Recreational Veh) / HD (Heavy Duty) |
| Control element | Digital |
| Voltage | 12 V / 24 V |
| Comments | This connector is required to install the Unicontrol 9034521C control unit (except for the replacement of the timer 1531). |