Window balances or block and tackles

Question

5/8th channel depth and 9/16ths channel width. Need 2 of these. Photos are of the bathroom window balance.

Also need same for 2 other windows ,
but different part number which is: 86 26-3 k85 CMC - I need 4 of those.

Tom · Accepted Answer

Hello! We can supply these balances, but there's an important distinction between them. This 17-4 stamp model is *usually* a standard product and can be directly purchased from our site, but the 86 26-3 is a unique configuration that has to be a special order.

Are these windows the same make and model, even if they might differ in size? If so, there's a chance that the 17-4 balance might be a special configuration, too. A good way to confirm is for you to flip the balance over and show me the connection point between the spring and pulley block. That's the clue I use to tell these balances apart, even when the stamp might be in question. Can you show that to me?