These are a set of capacitors for Maytronics impeller motor you should definitely replace these if your motor got wet otherwise there’s a good chance that you will do the Repair and then your board will go out. These actually protect the board. They have nothing to do with the runability of the Motor the motor will run without them, but it will create too much RF, which is radio frequency and burn the board up or cause it not to operate properly super cheap insurance. Make sure that you do your repair properly by replacing the components that are necessary. The first time there are no returns on this product.