Not to be an outerwear’s fanboy but they sell those bags that fit over filters in all shapes and sizes and they’ll provide dimensions etc for you as well. In my experience they size them TIGHT and having a loose fitting filter bag is fine as long as it’s tight at the bottom so FWIW… maybe check them out. Their bags are not terribly expensive but cost a lot more than an 8 dollar paper filter… some of the bigger bags are ~$30 or more… tiny ones less expensive. But I use them and they do a great job of keeping the super fine particulates out and WATER out.
Frankly I only use the bags when racing motorcycles in the rain or cutting wood in a place where it’s filled with tons of dirt dust and super fine particulates. Like… my own property