Brosco wooden tilt window sash guide

A quick learner from Connecticut says:
Looking for a replacement for these Brosco sash guides circa 1993. The plastic is brittle and need something close. They are 3-3/4" wide x 64-1/4 long.
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Casey from SWISCO responded:

Hello,

Unfortunately, we do not carry replacement jamb liners or the naked balance springs that they hold. You would need to contact a local millwork for replacements. The only part we could supply would be the 15-104 Caradco friction shoe the springs attach to. Take a look and please let us know if you have any other questions!

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