Hello. Looking for 30

Question

Hello,
I am looking to replace several of these channel balances marked 2950 and then some small other mark below that I can?t make out. It looks almost exactly like the 1/2? ?30 inch series 385 channel balance Except, the bottom winged balance shoe is only 7/8? wide not the 1? or the 1-3/32?. I do not think they have an 1/8? wear on them either as both are the same . Also the top tip is winged also. I am needing a total of 6 of these along with the top cap that goes on the corner of the window to catch the balance top. Thank you so much for your help!

Paul · Accepted Answer

Greetings! Based on your photos, it looks like you have an S380-30 sideload balance. This bottom nylon shoe's depth of 1'' is closer to your old balance shoe. You can file down the front of the shoe if you find that it is too tight in the sash. Based on your 2950 marking, your spring weight option would be 2950.