Assistance Request

Hello Swisco Representative,
 
I am requesting your assistance in selecting the appropriate replacement parts for my existing window.  I would like to purchase the following:
 
- One 28 inch channel balance with the plastic end pieces.  The brand of the window is BFS.  The marking on the original channel balance is 2720.  I have taken many pictures of the channel balance for your reference.  
 
-  Six metal clips that attach to the frame.  This clip is normally flat in the window channel.  One end of the clip can be raised to engage the channel balance.  Pictures of the metal clip is attached for your reference.  
 
Thanks for your help and look forward to hearing from you soon.

Additional photos