FZ 580:

Using the patent-pending threaded rings and one base, all small-neck style radiators and expansion tanks can be pressurized with this new product. Simply thread on the taller or shorter ring to accomodate a shallow or deep neck. 

The broad range of applications include: 
Acura, Chrysler, Dodge, Eagle, Ford models (Explorer, Festiva, Tempo, Villager, Windstar, Sport Trac) Geo, Honda, Hyundai, Infiniti, Isuzu, Lexus, Mazda, Mitsubishi, Nissan, Subaru, Suzuki and Toyota.