odly specific electrolytic cap values labled 15 to 20 mfd 500 w.v.

[pucho812]

Looking at an old multi can capacitor, has 4 values. All Listed as 15 to 20 mfd and 500 W.V.


SO I'm looking at 4 caps that are 20uF/500V and that the 15 to 20 is that manufactures way of saying % tolerances?