Comet 16qb propane quick connect

[Canada steve]

Hi everyone. I have a 2018 comet 16qb . I am trying to figure out what size the propane quick connect is ,that is mounted near the bumper . I want to buy an extension hose to run my camp stove and BBQ but I don't know if the quick connect is 1/4 or 3/8 . Called StarCraft and they couldn't tell me . The woman reading the schematic on the phone didn't seem to have much of an idea ,she could only give me a part number not a size. Anybody here know?