Tom from SWISCO responded:
June 23, 2016
Thanks for posting! This looks a lot like our 81-112. Check it out and let me know what you think!
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Tom from SWISCO responded:
June 24, 2016
Sure! The 81-112, and your old roller, have two runners at the top. Once you take off the bottom rail, you slide the old one off using those runners and slide the new ones on the same way. Hopefully this helps!
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