How to set the index of a spinner?

I have 3 spinners that I am using for filters, in my application each column has a filter, name, age, city, when I click the filter age, I will choose an age, for example 12 and age will get selected, when I click on town I need the value selected at age to go back to the first spinner index that is "age." Does anyone know how to do this? Thank you in advance.