Tom from SWISCO responded:
May 2, 2017
Thank you! I'm very happy our website has been helpful for you. We are of course always happy to be as helpful as possible. Hopefully, I can help you now, as well.
To start with, I see you were looking at our S751-28, but you mention that your length is 30". Can you confirm? Make sure you're only measuring the metal channel. You can also ignore the "B" portion of your stamp. I believe that's just a manufacturer mark, likely to indicate that it's for the bottom sash. I'm confident recommending our 28HD stamp, but if you wanted to be 100% sure you can weigh your sash on a scale. |
Tom from SWISCO responded:
May 3, 2017
Hmm... this is not a typical situation. If your stamp reads "28," then the length of the metal channel should be 29" long. I don't know why the manufacturer would mark them "28HD" on a 30" long balance. However, if you're certain they are 30" long, and if your sash weight is 18 pounds, I would recommend the 29R stamp.
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Dave Sr. from SWISCO responded:
May 3, 2017
I'm afraid we do not sell jamb liners, but a local mill work may be able to help you.
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