Milgard Window Balancer replacement

Hello, thank you for writing in! We would be happy to help you find replacement channel balances. The stamp that you indicate tells us the necessary spring strength, but we will still need to determine what series you have. In order to do this we will need to see clear images of the plastic fittings at either end of the channel. I would preferably like to see them from above with the open side of the channel, where the spring is revealed, facing up. Thanks!

This is perfect, thank you! It looks like you could have either our S380-21 or S385-21 with the 2050 stamp option. The difference between the Series 380 and the Series 385 lies in the depth of the shoe. Take a look at the picture below for more detail. Once you have determined this dimension you should be able to select the appropriate balance. 

Comparison of the S378, S380 and S385 balance shoes.

Hi Bill. All the pricing information can be found on the product page. The delivery time will depend on your location and the shipping method you select. You can calculate this on the website, when you go to check out. You will just enter your zip code and it will provide you with your shipping options. If you need assistance navigating the site, you can reach our customer service at 856-317-6263. 

Yes, that would be the equivalent for the 2050 stamp.