Short hat body measures 1.750" overall, from where the nozzle jet screws in to the first thread 1.00", from the tip to the first thread .750".
Tiny hat body measures 1.500" overall, from where the nozzle jet screws in to the first thread 1.00", from the tip to the first thread .500".
Nozzle bodies are 1/8" NPT where they thread into the injector. Nozzle bodies have one .140" aeriated hole.
Racer can pick length from drop down menu.