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S351-38 38" Series 351 Channel Balance

Looking to purchase 12 of these window balancers

37 4 cv CMC 7-only markings Need to find 2 of these

Not sure if it's the 390. Aluminum sash windows circa 1990? Sash measures about 38x38. As seen in photo 3740 stamped on balance. Metal part of balance measures 38" long. None of the 4 windows have top guides installed. Looking down the track the extrusion appears continuous. I think I saw a b ... (cont.)

We need a price quote on block and tackle balances shown in the photos, with numbers/sizes stamped on the balance "3740". The length of the metal balance, NOT including the plastic head and shoes, is 38". A quantity of 4ea. at this time. Please add shipping and handling to your quote. We also ... (cont.)

I need S351-38 balances, but the weight stamp says 3760. These are big old windows in a school. I think I need a custom order.

Hi, I'm trying to identify which channel balance I need to replace my broken one. It has "3 7 B" etched into one side, and the metal channel is 38" long. It's for a very large, non-tilt window, measuring roughly 40" in height and 43" in width. So I also need to know which weight range is appropriate ... (cont.)