Channel balancer for Milgard non tilt window.

Hello! Your balance could either be our S385-22 or S380-22. You will need to measure the bottom shoe to confirm which is the better match. That's the only difference between them so measuring your shoe depth should tell you right away which is better.

Comparison of the S380 and S385 balance shoes.

All channel balances in this industry are measured by the metal channel alone. I don't know of anyone who includes the nylon fittings. I cannot speak for what Milgard does, but it would be very strange if they started measuring nylon fittings. That is not just going against the industry standard, it's also inaccurate; nylon fittings change in shape and style from Series to Series, but the metal channels are all pretty reliably sized. That's why it's done that way.

Either way, we always measure our channel balances using the metal channel only. Additionally, if yours is 22" then a 23" will not work. You need to stick with the size you have.