This is my setup for air brakes on my passenger carrying car.

Air Brake Parts: North Georgia Live Steamers
https://northgeorgialivesteamers.org/...

End of Car Fittings
https://www.airlinehyd.com/product/CL...
https://www.airlinehyd.com/product/CL...
https://www.airlinehyd.com/product/CL...

Tee
https://www.airlinehyd.com/product/CL...

Air Cylinder 90 degree w/ swivel
https://www.airlinehyd.com/product/CL...

Clippard tubing
https://tombeeonline.com/collections/...