Stansport Male Fittings T Connector

hi guys I hope you're all doing well last year I bought a Camp Chef stove and my plan was to bind the hose and plug it into the propane Quick Connect on the side of my RV I opted to not buy camp chefs propane hose because I wanted a longer length so I went to a propane store and had one made which is this and when I brought it home the fitting the male and would not lock into the quick-connect on the RV so I went to Camping World and I thought well it must must just have their own connector so I picked up another connector and tried it and it did not fit either so I didn't mess with it anymore last year I just pulled one of the 30 pound tanks out and used it by pulling the tank out but the whole idea of buying the hose doesn't have the convenience and not having to pull the take out so this year I thought I'm gonna figure this out I searched the internet search YouTube I really couldn't