I did some nosing around and couldn't find a quick connect tee so I'm guessing you will have to build your own from parts. If it was my rig, I would first remove the existing quick connect fitting (it just might be a good idea to turn off the gas first
), then put a tee in its place. If you want, you can add a gas valve while you are in there (I would but, then, I'm anal), then tee off from the valve. You could either put the quick connect fittings on the ends of the tee or, if you have room (or can make room), use elbows on the tee so the quick connects point out again. A little additional bracing would also be very wise. Follow Bob's directions regarding sealing the connections.