The reboxed filters at Advanced auto have 5 rings. No idea why, but one of the mid-sized is duplicated in the kit. They are in a "PUROLATOR" box but are German fleece filters. Purolator Part L25277.

There is a Purolator L25276 that fits our cars, too - but it's a PAPER filter. Don't want that! I buy the crush washers separately, don't have that part number rigth here, tho.