Window vertical side load balance Series Mark 40/50

Thank you for reaching out to us. It looks like you have a Kinco window that was made in the late 1990s. We're happy to help ID the balance, but we'll need you to remove the complete assembly so we can see the top and bottom fittings clearly. We'd also like to see a photo of the stamp printed on the metal channel.

If the top sash guide is damaged, we'll need to see an undamaged version removed from the window sash. See the videos on this page for more information.