Window balancer replacement

Question

This balancer is sticking and looking to replace it. Single hung window made by Mercer windows who are no longer in business.  The photo on the green towel has the item number printed on balancer. 25-2 GD5 CMC 61. The other photos are of the bottom and top of the balancer.

Paul · Accepted Answer

thank you for contacting us. Please take a look at both our S380-26 and S385-26 channel balances. These are the closest matches we have. These look the same, however, the difference between these two parts lie within the measurement of the bottom balance shoe. The depth of the Series 380 measures 1" and for the Series 385, it measures 1-3/32". You will need to measure the depth of your bottom shoe, like in the diagram below, to determine which balance would work best as a replacement. Whichever one decided can go with a 2520 option.

Comparison of the S378, S380 and S385 balance shoes.