Just to follow up and in case anyone else has trouble tracking down quick connect equipment that is compatible with their TT, the quick connect hose I posted above did indeed work with my 26BH. I also found a compatible male QC fitting with 1/4" threads at my local RV dealership that I'm going to connect to my Weber Q after disconnecting the regulator so I can run it off the TT's QC port.
One thing to remember that threw me off at first: The male end will not fit unless the lever on the female end is set to "OFF". Once connected, switch to "ON". Then to disconnect, switch back to "OFF". This confused me because the lever was in the "ON" position when my TT came from the factory, so I had to switch it to "OFF" before it would fit.
Both the QC hose and male fitting I purchased stated on the packaging that they are compatible with Olympian 5100 and 5500 grills. I'm sure there are others that work, but if you see "Connects Olympian 5100 and 5500" on the front of the package, I can confirm it will fit.
2013 Jayco JayFlight 26BH
2013 Toyota Tacoma SR5 w/Towing Package
4-Point Equal-i-zer Hitch
Prodigy P2 Brake Controller