OEM Toyota zz3's can be had for about 3.95 each through camel back or McGeorge...or whomever. For 5 cents more than the zz1's why not increase filter element and capacity...not much..1/2 cup maybe...but why not ? When I have to order parts I order a few filters too, will now be adding my sons taco filter to my list, and save about $3 per. Only prob is you have to have so many dollars in parts for free shipping..but with waiting for something big I need and order a bunch of filters, usually not an issue.
Toyota Airfilters are cheap too, on line and have them on my list.
someone months ago did research on filters, took the most common ones and cut them apart and it is pretty sad to see some of the filters and lack of filtration.. If I remember correct, fram lost
someone else can search….