Marvin window tubes

Question

Hi,
I have Marvin Double Hung tilt-in windows (installed in 2004) with a number of broken balance tubes. Do you sell compatible replacements?

They are marked as follows:
36E - lower tube
36F - both upper and lower

Thank you,
Ted

Tom · Accepted Answer

Welcome to SWISCO.com. Unfortunately, those codes don't indicate the type of balance, they simply tell us the height of the visible glass in the window and the strength of the spring in the balance. Use our channel balance guide to identify which Series you need, or post photos for us to identify ourselves.