Window balance / tensioner

A landlord from New Jersey says:

Need help identifying the correct replacement part - please help ASAP. Thanks! Jim B.

Also need the tool that's used to install these parts...

User submitted photos of a window balance.
Profile picture of Bob
Bob from SWISCO responded:

Thanks for writing in, and thanks for your patience during this busy season. Please confirm that the diameter of your old balance tube is 3/8", rather than 5/8"; it's a bit difficult for me to say for sure from your photos. Also confirm that the tube, not including the colored tip, is 25" long. If so, see our S900-25. You will need a red tip option. For a charging tool, see our 75-006. See the video below for installation details. 

How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
VIDEO
WATCH >
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
VIDEO
WATCH >
How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
GUIDE
READ >
How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
GUIDE
READ >
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