this is more for the archives since I just ordrered mine, but man, where they tricky to find. www.firstchoicemarine.com
has the 1-1/8" straight and 90 elbow fitings, as well as what looks like thread to "flow rite" quick disconnects.
Thoes were the last parts I needed for my ballast. almost spent $30 overnighting a $4 part