replacement parts for milestone single hung series 1000

A home owner from Florida says:
April 6, 2015
My house, built in 2004, has milestone single hung series 1000 windows. The windows are difficult to slide up and down and with several of them if I open them I cannot get them all the way closed. It appears I need to replace the channel balances. After reading one post, it looks like I can use your S380-29 channel balance, but I am not sure of the stamp option. I am afraid to take the current channel balance out, for fear I will not be able to get it back in place while waiting on replacement parts. Is there any way to estimate the stamp option based on window dimensions?
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Tom from SWISCO responded:
April 6, 2015
There are only two ways to determine what stamp option you need for your balance: you can either match it up to the stamp currently printed on your balance, or you can weigh your window sash on a scale and cross reference the weight with the chart found on our S380-29 store page.

For help on replacing balances and removing the sash, please see the video below.
A quick learner from Kissimmee, Fl says:
June 20, 2023
I need to replace 3 window screens, missing or broken. Where can I get screen frames or frame kits?
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Tom from SWISCO responded:
June 21, 2023

We unfortunately don't sell replacement screen inserts or kits of any kind. My recommendation is to contact a local hardware store for assistance.
29" Series 380 Channel Balance
29" Series 380 Channel Balance
S380-29
$11.10
How to Replace a Non-Tilt Channel Balance
How to Replace a Non-Tilt Channel Balance
VIDEO
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How to Repair a Jammed Window
How to Repair a Jammed Window
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How to Identify Replacement Channel Balances
How to Identify Replacement Channel Balances
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How to replace a non-tilt channel balance
How to replace a non-tilt channel balance
GUIDE
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Choosing a Non-tilt Channel Balance: What Will We Need?
Choosing a Non-tilt Channel Balance: What Will We Need?
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