Are the 23-234 guides as strong as the original ones?

A home owner from Lancaster,Pa says:
Are These guides as strong as the original ones? I had gotten some from an old established glass store in Lancaster, pa But they broke into pieces when installing them. As if they were old an brittle
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Tom from SWISCO responded:
Thanks for posting in our discussion board. I do not have an original guide to compare so I cannot speak for the strength of these bottom guides compared to the original guides. They are made of plastic and we have not received any complaints of them being too brittle.
A home owner from Lancaster, PA says:
Received my order. They are exactly like the originals ! Thank you So much!! I have been looking for these for 3 years.
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