Expansion tank cap lost T444e

[RoadWhale]

Hi everybody!

In my stupidity I didn't screw on my radiator cap after I filled up the coolant, so during the test ride I lost the cap.
Now my question, who has a T444E in his skoolie and can check the pressure of the cap? I can't find it anywhere in the manual, so it would be really help full if somebody can check this for me.
Thanks a lot!!

[RoadWhale]

Found it!! it should be one with an opening pressure of 1.1 bar or 16 psi.