Here is the armrest adjustment knob for the ActiveCare Catalina and Drive Medical Titan power chairs. This adjustment knob is the OEM replacement for your original armrest knob, and can be used on your Catalina or Titan without modification.
Everything that your Company did was handled Great. The problem I have is that the Armrest Adjustment Knob for the width adjustment doesn't work on My 'Quantum Q6 Edge' Power Wheel Chair. I will Need to Send Back Unfortunately. I Don't Know if You have the Knob for My Q6 Edge but will be checking. Again, Your Service & Customer Attention was extremely Good & done in a timely Manner.