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S378-21 21" Series 378 Channel Balance

Metal section is 21" long, 9/16" wide and 5/8" in depth. The number on part is 2040 CA / B.S.I. In need of 2 (1 pr) Thank you

Balance sash spring they do not stay in place seems like missing clips to keep them in track

I need to replace several window balances for two different sized windows. The sticker on the windows are labeled SERIES: 6210/6230/6230J/6270 H-R25-48x78 H-R30-48x96 The larger window balance is stamped 34 4 JV CMC 7 The smaller window balance is stamped 20 2 IV CMC 7

Please help me identify the replacement part, thanks!Chris

Need Replacement part model number

Channel balance 2040 21 inch and the second picture is a clip for it

I need to replace a broken balance for my single hung window. The pictures show the broken balance. The length of the metal channel is 21 inches and width is 5/8 inches at the widest. The weight of the sash is 21 pounds. As the pics show, the top and bottom guides are both winged. I'm looking for ad ... (cont.)

I am replacing balances in some Milgard single hung windows. I do not think these are original Milgard balances. Can you help me track these balances down?!

Milguard double hung needs replacement channel balance SERIES: 5220/5231/5270 AAMA/NWWDA 101/1.5.2-97 H-C40-54x90 Channel balance says 20 4 GW CMC 7

Photos uploaded. 2030 stamped