27" channel balance with knife lock shoe

A contractor from Hawaii says:
Aloha, I am replacing the channel balances on wood sashes for a client. It is 27". It appears that the 750 is the ticket. But the pieces I have from the window have the knife lock on the end. The picture for this shows the channel balance shoe. Can I order them with the knife lock. Also do I need to order short and long s clips. I am doing 3 windows and replacing all balances. Thanks, Aloha Jim
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Tom from SWISCO responded:
Could you be looking for our Series 751 balance instead? This is a ribbed tilt window channel balance like our Series 750 but comes with a knife lock shoe. See what you think.
A quick learner says:
Thanks a heap Tom, you guys are the best. I am rapidly becoming the go to guy here on Maui thanks to you folks.

One more Q, the windows are not tilt ins. Will the 751 still work?

Mahalo,
"Aloha Jim"
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Tom from SWISCO responded:
Of course Jim! We couldn't be happier to help. To answer your question as long as the replacement matches the old balance it will work.
How to install a ribbed tilt channel balance with knife lock shoe
How to install a ribbed tilt channel balance with knife lock shoe
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