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S380-30 30" Series 380 Channel Balance

As per the technicians recommendation, I ordered these Channel Balance with the option, 2920. Should I be concerned about the difference in spring size?

The window part number is 2950 CJ AT or at least that is the number engraved at the end of the part. The metal length is 30" with a plastic insert on each end making the overall part 31". The windows are about 21 years old. I could find no description on the windows. The part is 5/8" x 1/2". ... (cont.)

There are no visual markings on metal window balance frame. Provided all photos to assist in identifying correct replacement window balance.

I need 2 of the guides for my Lawson windows.They are 30 inches long. On the part is 29DS. 38

Hello. Trying to find part #2930. Bsi. Window balancers..Is there a different part # now for that part. It is 30 inches long and half inch wide on top with those extra wing plastic on sides...thanks I'll keep looking Ray

I will need 8 balances and was hoping you have these type in-stock. Not sure of the weight load of these balance but I know the top and bottom plastic slides have wings. I hope the pictures I have sent may help you identify a compatible balancer that you carry. If you need more pictures please let m ... (cont.)

3/4 " depth 30" length of balance 34.2 lbs.

I am trying to confirm the correct replacements for my windows. See attached photos. Thank you.

Channel balance measures 29 7/8 inches

No markings found on part. 52" wide single pane non-tilt window. Channel width is 5/8". Length is 30". I need both sides. Just note there is a wheel at the bottom and this looks like a block and tackle type balance.

I neglected to take photos of the balance(s) before removing them. I'm not even sure how to determine if they are in fact "worn out." One side keeps coming off its connection to the window frame. I've try to match my window balance to the ones on your website but I can't find any that resemble mind. ... (cont.)

Looking for replacement channel balancers

Good Morning The above photos are from a NUAIR window. Home was constructed in 2006. The length of the balancer Metal to metal not including plastic tips is 30 inches. I looked on line. I see you have balancers in stock. I could not locate the same number stamping on your site as i have on my bala ... (cont.)

They are 29 inches

How do I know which stabilizer? Metal is 30 inches long. See photos

I am replacing the channel balance for an Alcan window. Your part 30" Series 380 Channel Balance, Product Code: S380-30 appears to be the correct part. My window balance is 30 inches long and 1/2 inch wide. The stamp on the old part is 2910. The bottom measurement is 1 inch just like the S380 ba ... (cont.)

Stamp in channel "29 3" then sideways it says BS1 or 8SI ?

I need to replace my window channel balance. It measures 30" metal-to-metal. There's and engraved stamp of 2920 as noted in the photos. Please advised.

Hello can you tell me what window balance to order?

Please send quote and information on needed replacement