HR Partsnstuff rear bar question

Does anyone know if the HR parts bar for the rear must be used with their own control arms. I'm considering buying their 1.25" rear sway bar and already have a line on some boxed lower control arms. Would hate to buy the bar and it not work with another brand of lower arms. Thanks

 

Will work with any control arms, there bar connects to the rear axle tubes and the frame....

 

Thank you. :TU: Jim