SWISCO - The Replacement Hardware Authority

Marvin window tube balace

A quick learner from Charlton, MA says:
How do I order six 37 inch tubes, mine are marked 36HD and have the 15-014 Knife lock device.
Profile picture of Tom
Tom from SWISCO responded:
Hello! Would you happen to know what your balance Series is? If not, please take a picture of what you have now so that we can determine what you may have.
A contractor from Charlton, MA says:
Hi Tom,
Hope the photo is helpful.
User submitted a photo of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Yes, thank you! If you have the 15-014 knife lock shoe and a 37" long ribbed channel balance, I would recommend looking at our S751-37 channel balance.
A contractor from Charlton, MA says:
Thanks Tom,
I'm probably doing something wrong. Every time,almost, when I try to remove the sash the knife lock flies and blows up against the balance body. Either my technique is flawed or the plastic has become brittle.
Profile picture of Tom
Tom from SWISCO responded:
I recommend watching the video below, this should help you out.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)