5/8" Top Sash Guide, Seasonall

I need to replace my Milgard Single Hung Channel Balance. The balance length without plastic ends is 26 5/8 inches. I also need the top plastic clip that screws to the window channel (See Pic).

Looking for this part (pic #2) Unsure what the name of the window company is so I included a photo of their logo.I close on my home in 7 days. Sure hope you can help. Thanks, Janette

I have two different type on same window one looks like s351 or s390 one looks like s380 or s385 probaly have been replaced before and not sure which is correct also clip on window is broken. See photo

i own a commercial building in Portland Maine that has New Englander brand double hung metal windows that were installed approx 50 years ago. These windows have metal balances that hold the lower sash centered and in position when the sash is opened (raised). These balances are now failing and I nee ... (cont.)

~25 5/8" long, number stamp 25 4 , looks like your photos in step 1. was told it was BSI Extended Travel Balance 60G 25-4 I need 2 pairs (4 pieces) plus need 2 pieces of a Kinco Sash Guide 900-10122OS 1 1/2" x 5/8" x 1/2" Old Style.