Looking to identify a channel balance part number

I generated another post to identify the pivot shoe.

This post is seeking assistance in identifying the channel balance.

As you will see in attached photos, the balance housing is 31 inches long and about 1/4 inch wide.

Thank you for your help.

I misstated the width of the balance housing. It's about 1/2 inch wide, not 1/4 inch.

Thanks again.