Single hung non-tilt block and tackle balance

Thanks for writing in. We'd be happy to replace this balance for you, but it has to be custom made due to its unique design. Specifically, that stamp indicates that this balance used an extra-strong spring that none of our standard balances feature. We'd be happy to replace these for you via custom order, but I need a little more information to get this going. 

First off, we need to identify the fittings this balance uses. I believe the top fitting is our 19-041, which is often used with the 15-004 bottom fitting, but please review all the dimensions listed in the pictures for their respective shop pages to confirm. For the shoe, be sure to measure the depth or 'heel-to-toe' measurement. For the 15-004 that depth is 1-3/32". Let me know if your balance's shoe differs at all. 

Finally, how many of these balances do you need? Once we have all this sorted, I can draft a quote for you. 

Fair enough! I just sent you an email with a custom link to order two 23" balances, with the 19-041 Top and 15-005 Bottom attached. These balances will be stamped 2270, which means they can support a window sash in the weight range of 34 through 37 pounds. Let me know if you have any further questions.