Defroster Splitter

Hey Guys,
I finally decided to connect my defroster hoses up after after about 35 years (don't drive the car in rain or snow so I never needed them). Anyway I ordered a new hose kit from Classic Industries only to find that I am missing the splitter (see attached picture from the manual). Any Ideas where I can get one or something else that you might have used? Thanks for your help!IMG_20200128_112430231~2_copy_2000x1500.jpg