The model number is normally found inside the fridge or freezer. You will likely need to remove the salad drawer or freezer drawer to find the model number plate. Otherwise the model number is likely to be on the side or rear of the appliance.
Genuine BOSCH KUR15A50GB/03 KUR15A50GB/02 Fridge Door Bottle Shelf Lower 704904
Bosch KUR15A50GB/01, KUR15A50GB/02, Bottom Lower Bottle Shelf Tray For Fridge
Bosch KUR15A50GB Fridge Door Bottle Shelf Rack Tray Bottom GENUINE 704904
Bosch KUR15A50GB Fridge Door Bottle Shelf Rack Tray Bottom Lower GENUINE 704904
Bosch KUR15A50GB/03 Lower Bottle Shelf Rack Fridge & Freezer Genuine
Bosch KUR15A50GB Fridge Door Shelf Rack Tray Top & Middle GENUINE 00702549