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Casey from SWISCO responded:
February 24, 2023
Hello, We have recommended our 18-172 to a customer with a similar top sash guide in the past. Take a look and see how the dimensions below. The one thing that I can't account for is the offset of the screw hole in your guide. If the dimensions match up, you may still need to drill a new hole in the 18-172 to install it. Thanks for posting!
![]() Side view of 18-172
![]() Detail of 18-172
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