Yes - 'sway' control.
I have contacted Titan Brakes but they have directed me to the local dealers - given you have dealt with Titan regarding the longer brackets, did you buy originally from them or someone else?
I originally got my Andersen wdh from AA AUTOMOTIVE in MAGILL SA as they were the only agents in SA when I wanted one. The longer brackets I picked up from CARA-REST CARAVAN SUPPLIES & REPAIRS on GRAND JUNCTION RD but that was all organised through Titan trailer brakes. I found Titan great to deal with and have sorted issues for me.