Single hung window balances

A quick learner from Winter Haven, Fl. says:
I have 12 apartments with a few different old aluminum windows but currently I need:
Single hung spring loaded window balances 1/2 inch wide and 3/8 inch deep.
One has the number 1620
One has the number 2230
I have an 18 inch long round swivel with no number I can find.
Also what other plastic parts do I need for the windows themselves?
User submitted a photo of a window balance.
Profile picture of Paul
Paul from SWISCO responded:

Thanks for posting. Looks like you have one spiral balance and two channel balances. It's tough to say exactly what you need based on these photos, but I would start by looking at our Series 600 spiral balance, which has a 5/8" diameter tube, and our Series 390 channel balance, which comes with the 19-005 top and 15-005 bottom. Carefully go over the information and pictures we have for all of our balances to confirm. You can also see our entire selection of balances here.

How to Replace a Non-Tilt Channel Balance
How to Replace a Non-Tilt Channel Balance
VIDEO
WATCH >
How to Repair a Jammed Window
How to Repair a Jammed Window
VIDEO
WATCH >
How to Identify Replacement Channel Balances
How to Identify Replacement Channel Balances
VIDEO
WATCH >
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 replace a non-tilt channel balance
How to replace a non-tilt channel balance
GUIDE
READ >
Choosing a Non-tilt Channel Balance: What Will We Need?
Choosing a Non-tilt Channel Balance: What Will We Need?
GUIDE
READ >
How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
GUIDE
READ >
How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.