brake shoe with patent # 4.610.108

A contractor from Stevensville Michigan says:
Good Morning
We are searching for a brake shoe with the corresponding balancer for it. the weight of the sash is 30 pounds
I have attached a photo of the brake shoe

do you have in stock?
balance shoe
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. I would recommend our 15-191 pivot shoe and S160-7. Each of these springs can carry 7.5 pounds each, so I would recommend 2 on each side of the sash. That should be enough to carry your sash weight of 30 pounds.
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